How does this trek differ from the standard EBC trek?

The standard Everest Base Camp Trek route follows the Dudh Koshi valley the entire way and reaches Everest Base Camp and Kala Patthar before returning the same way. This 17-day combination adds the Gokyo Valley, a separate side valley northwest of Namche, so you also reach Gokyo Ri (5,357 m), see all six Gokyo Lakes, and walk beside the Ngozumpa Glacier. You then cross Cho La Pass (5,420 m) to join the EBC trail at Lobuche rather than retracing steps. The result is a loop through both major Khumbu trekking regions instead of an out-and-back.

Is Cho La Pass safe to cross? What happens if conditions are bad?

Cho La Pass (5,420 m) is safe under normal spring and autumn conditions but includes a 200-metre glacier section that requires crampons. We supply crampons as part of the package. Our guides check pass conditions each morning using local network contacts and weather data. If overnight snowfall or ice has made the col unstable, we do not cross. In that case we have two options: wait one day in Thagnak for conditions to improve, or descend back toward Namche and complete the EBC portion of the route without the Gokyo side. We do not push through unsafe pass conditions under any schedule pressure.

Do I need experience with glacier crossings for Cho La?

No prior glacier experience is required. The glacier section on Cho La is approximately 200 metres of walking on a moderate-angle snowfield. You will be in a guided line with your Sherpa leading, crampons on, trekking poles out. The main requirements are fitness, focus, and the ability to follow instructions carefully. If you have never worn crampons before, your guide will spend 20 minutes on a technique briefing at the base of the glacier before you start. Trekkers with no mountaineering background complete this crossing every season.

What is Gokyo Ri, and how difficult is the climb?

Gokyo Ri is a 5,357 m peak directly above Gokyo village that serves as the primary viewpoint for the upper Gokyo Valley. The climb from the village takes approximately two hours on a steep but well-trodden path, no technical climbing involved, just a sustained uphill walk at altitude. The summit gives a 360-degree view that includes Everest (8,849 m), Lhotse (8,516 m), Makalu (8,485 m), Cho Oyu (8,188 m), the Ngozumpa Glacier, and all six Gokyo Lakes below. We start at 5:00 a.m. to reach the top at sunrise. Difficulty is similar to Kala Patthar, strenuous due to altitude, not technical terrain.

How many Gokyo Lakes will I see?

There are six Gokyo Lakes in total, all within about 10 kilometres of Gokyo village. During the trek you pass the first lake (Longbonga Tsho, 4,690 m) and second lake (Taujung Tsho, 4,720 m) on the way into the village, and you stay beside the third lake (Dudh Pokhari, 4,790 m) for two nights. From Gokyo Ri the summit view shows all six lakes. On the afternoon of Day 9 you can walk north to visit the fourth lake (Thonak Tsho, 4,840 m) and the fifth lake (Ngozumpa Tsho, 4,990 m). The sixth lake (Kachujung Tsho) is further north and at higher elevation; it is not on the standard itinerary.

What is the highest point of this trek?

Kala Patthar at 5,545 m is the highest point on this itinerary. We summit Kala Patthar on Day 14 before dawn. Everest Base Camp at 5,364 m is the second highest point, reached on Day 13 afternoon. Gokyo Ri at 5,357 m comes third, climbed on Day 9 morning. Cho La Pass at 5,420 m is the highest technical section of the route. The combination means you reach four separate points above 5,300 m across the 17 days.

How fit do I need to be for this trek?

This is a strenuous trek rated harder than the standard Everest Base Camp Trek route because of the Cho La Pass crossing and the additional altitude gain in the Gokyo Valley. You should be able to walk six to eight hours per day with a light day pack, handle consecutive days of hiking without significant recovery time, and stay calm in a physically demanding situation like the Cho La glacier. Prior trekking experience above 4,000 m is helpful but not required. In the three months before departure, building a cardio base through hiking, running, or cycling four to five days a week will make a significant difference to your experience on the high sections.

What is the best time of year for this trek?

October and early November are the most reliable months: clear skies after the monsoon, stable Cho La conditions, and daytime temperatures at Gokyo between 5 and 10°C. April and early May are the spring alternative, with slightly warmer temperatures and rhododendrons in bloom below Namche. We avoid June through August because monsoon precipitation makes the Cho La glacier dangerous and visibility poor. Late November onward brings cold temperatures and the risk of heavy snowfall on the pass; we monitor conditions daily and adjust if needed.

Are permits included in the package price?

Yes. All three required permits are included: the Sagarmatha National Park entry permit (USD 30 per person), the Khumbu Pasang Lhamu Rural Municipality fee (NPR 2,000 per person), and the TIMS card (USD 10 per person). Our Kathmandu office processes all paperwork on Day 2 and hands you the physical permits before you leave for Lukla. You do not need to visit any permit offices yourself.

What is the accommodation like in Gokyo?

Gokyo village has approximately 10 to 12 teahouses, ranging from basic rooms with two single beds and a shared outdoor toilet to slightly more comfortable lodges with electric blankets and attached bathrooms. Hot showers are available at most lodges for roughly USD 2 to 3. We pre-book rooms at one of the better-equipped teahouses in the village. At 4,790 m temperatures at night drop to minus 5 to minus 10°C in October, so a quality sleeping bag rated to minus 10°C is essential even in a room with blankets.

How do you handle altitude sickness on this route?

The itinerary is designed around the 'climb high, sleep low' principle with two acclimatization stops: Namche Bazaar (3,440 m, Day 5) and Gokyo (4,790 m, two nights). Our guides check oxygen saturation readings with pulse oximeters every morning. If a trekker's SpO2 drops significantly or they show symptoms of AMS, persistent headache, vomiting, loss of coordination, or confusion, we descend immediately regardless of where we are in the itinerary. We do not allow trekkers to push through neurological AMS symptoms. The Himalayan Rescue Association clinic in Machhermo provides additional support in the Gokyo Valley.

What gear do I need for Cho La Pass?

Crampons and trekking poles are the essentials for Cho La, we supply both. You will also need warm waterproof gloves, a down jacket rated to at least minus 10°C, gaiters to keep snow out of boots, and sturdy waterproof trekking boots with a stiff sole that accepts crampons properly (soft sole running shoes or approach shoes will not work). A headlamp with fresh batteries is needed for the early start from Thagnak. Sunglasses with UV protection and sunscreen are important on the glacier section where snow reflection is strong.

Is this trek more strenuous than the standard EBC trek?

Yes, this itinerary is moderately harder than the standard Everest Base Camp Trek. The main additions are the Cho La Pass glacier crossing and the extra altitude gained in the Gokyo Valley. The total number of days above 4,500 m is greater than on a standard EBC route, and Cho La requires physical effort and focus that a standard trail does not. The cumulative distance across 17 days is also longer. However, the route is well within reach of any fit trekker who prepares properly, thousands of trekkers without technical mountaineering backgrounds complete this combination every season.

What happens if a Lukla flight is cancelled?

Lukla flights are weather-dependent and delays or cancellations do happen, most commonly in spring when afternoon cloud builds quickly. If your flight out of Lukla is cancelled, we hold rooms and arrange rebooking for the next available flight at no additional cost to you beyond accommodation expenses. If multiple days pass without a Lukla flight opening, we can arrange helicopter evacuation from Lukla to Kathmandu as an alternative, this costs approximately USD 500 per person and is typically covered by travel insurance. We always build buffer time into the Kathmandu schedule before international departure flights.

Can I do this trek with a private guide instead of a group?

Yes. All our Khumbu treks are available as private departures with a dedicated guide assigned exclusively to your party. A private departure costs more per person than joining a group but gives you full flexibility on daily start times, rest stops, and pace. Private groups of two to four people often find the per-person price comparable to group rates once you factor in the customisation. Contact our Kathmandu office for a private departure quote specific to your travel dates and group size.

Everest Base Camp and Gokyo Lakes Trek | 17 Days | Cho La Pass

The Everest Base Camp Trek with Gokyo Lakes combines the classic EBC route with one of the most spectacular side valleys in the Himalaya. This seventeen-day itinerary takes you to Everest Base Camp, then crosses the Cho La Pass at five thousand four hundred and twenty meters to reach the Gokyo valley and its famous turquoise lakes.

The Gokyo Lakes are a series of six glacial lakes at altitudes between four thousand seven hundred and five thousand meters. The third lake, where the village of Gokyo sits, is a remarkable shade of turquoise that photographs cannot fully capture. From Gokyo Ri at five thousand three hundred and fifty-seven meters, you see the finest panoramic view of the Everest massif available to non-climbers.

This extended itinerary requires more time and more fitness than the standard EBC trek. The Cho La Pass crossing involves some glacier walking and can be challenging in poor weather. A professional Everest trek operator will assess conditions carefully before committing to the crossing and will have alternative plans ready if the pass is not safe.

The acclimatization schedule on this trek is particularly important because you spend more time at high altitude. We build in extra rest days and monitor health indicators closely throughout the upper sections. The views and the variety of terrain make the extra effort genuinely worthwhile.

Trekkers who complete the EBC and Gokyo Lakes route consistently describe it as superior to the standard EBC trek. The variety of landscapes, the different perspectives on the mountains, and the sheer beauty of the lakes create a more rounded and memorable experience.

Our Everest Base Camp with Gokyo Lakes package includes all domestic flights, trekking permits including the Gokyo area, teahouse accommodation, meals, experienced guide, porter service, and glacier crossing equipment. Contact Everest Trekking Company for details and to assess your fitness for this extended route.

Everest Base Camp and Gokyo Lakes Trek Overview

The Everest Base Camp and Gokyo Lakes Trek gives you both sides of the Khumbu in a single 17-day journey. Most trekkers choose between the classic EBC route and the quieter Gokyo Valley, this itinerary does not ask you to choose. We take you up to Gokyo Ri (5,357 m) for a panoramic view of all six Gokyo Lakes and the Ngozumpa Glacier, Nepal’s longest glacier at roughly 36 kilometres, and then cross Cho La Pass (5,420 m) to join the Everest trail at Lobuche. From there the route continues to Gorak Shep, Everest Base Camp at 5,364 m, and Kala Patthar at 5,545 m.We lead this trek every spring and autumn with a team of high-altitude Sherpa guides, most of whom have reached the summit of Everest multiple times. Our senior trek leader Susam Suywal has completed the Cho La crossing more than 25 times and knows exactly when the pass conditions are safe and when to adjust the schedule. Cho La carries a short glacier section that requires crampons and trekking poles, both of which we supply as part of your package.

What Makes This Route Different

The standard EBC trek follows the Dudh Koshi valley all the way from Lukla to Gorak Shep. It is a fine route, but it covers only one part of the Khumbu. The Gokyo combination adds the upper Gokyo Valley, a less-trafficked area where teahouse density drops sharply above Dole, and where you spend two nights in Gokyo village beside the third, fourth, and fifth lakes.On the morning of Day 9 we climb Gokyo Ri before breakfast, reaching the 5,357 m summit in roughly two hours from the village. The view from the top puts four 8,000-metre peaks in front of you, Everest (8,849 m), Lhotse (8,516 m), Makalu (8,485 m), and Cho Oyu (8,188 m), alongside the full sweep of the Ngozumpa Glacier filling the valley below. The afternoon is free to walk along the lakeshore or visit the fourth and fifth lakes, which sit at 4,840 m and 4,990 m respectively.The Cho La Pass crossing on Day 11 is the technical centrepiece of the trek. We leave Thagnak early, cross a boulder field and a 200-metre glacier section, and reach the 5,420 m col before noon. The descent to Dzongla is steep but well-marked. In good autumn or spring conditions the crossing takes four to five hours. We carry crampons for every trekker and turn back if overnight snow has made the col unstable, safety on the glacier section is non-negotiable.

The Full Route

We fly from Kathmandu to Lukla (2,860 m) on Day 3, then follow the Dudh Koshi river upstream to Phakding and Namche Bazaar. Namche at 3,440 m is our first acclimatization stop, with a rest day that includes a hike to the Everest View Hotel at 3,880 m for an early look at Everest, Ama Dablam, and Thamserku.From Namche we leave the main EBC trail and head northwest toward the Gokyo Valley. The villages grow smaller above Dole (4,038 m), and by the time we reach Machhermo (4,470 m) and then Gokyo (4,790 m), the landscape opens into wide moraines and turquoise lake water. We spend two nights at Gokyo, one for arrival and rest, one for the Gokyo Ri climb.After the Gokyo Ri morning and an afternoon by the lakes, we move to Thagnak for Cho La preparation. The pass crossing puts us in Dzongla by mid-afternoon, then Lobuche the next day. At Gorak Shep on Day 13 we walk out to Base Camp in the afternoon. Day 14 starts before first light with the Kala Patthar climb, the 5,545 m highpoint of the entire trek, where we watch dawn colour the south face of Everest from roughly 300 metres above the standard EBC elevation.The descent from Kala Patthar to Pheriche takes most of the afternoon. Two more days of walking bring us down through Namche to Lukla for the return flight.

Best Season to Trek

We run this trek in two seasons. The spring window runs from mid-March to late May. Rhododendrons cover the lower ridges in March and April, and Cho La conditions are generally stable by mid-April. The autumn window runs from late September to mid-November. October is the most popular month: clear skies, settled weather, and daytime temperatures at Gokyo around 5 to 10°C. November is colder but less crowded; Cho La can receive early snow by mid-November, which we monitor day by day.We do not run this combination in the monsoon months of June through August because the Cho La glacier becomes significantly more dangerous with wet snow and reduced visibility. A standard EBC-only route is possible in monsoon conditions, but the Gokyo addition is not a risk we take.

Permits Required

This trek requires three permits. The Sagarmatha National Park entry fee is USD 30 per person, the Khumbu Pasang Lhamu Rural Municipality fee is NPR 2,000 (roughly USD 15), and the Trekkers’ Information Management System (TIMS) card costs USD 10. All three are included in our package price and handled by our Kathmandu office before departure.

Trekking with Everest Trekking Company

We have been running treks in the Khumbu since 2004 and have a permanent field team based in Namche Bazaar. Every trekker on this itinerary is assigned a licensed Sherpa guide with a minimum of five years of high-altitude experience. Our group size is capped at 12 trekkers to keep the teahouse experience manageable and allow our guides to give individual attention on technical sections like Cho La.We carry a first-aid kit with pulse oximeters on every departure and our guides are trained in wilderness first aid and high-altitude illness recognition. Emergency evacuation helicopter coordination is part of our rescue protocol, we have the contacts and the process, so you do not have to figure it out in a crisis.

2026 Update: Lukla Flights and Permit Fees

Trekkers joining Everest Trekking Company in spring 2026 (March to May) should note that Lukla flights during the peak spring season often depart from Ramechhap airport rather than Kathmandu’s Tribhuvan International Airport. Ramechhap is approximately 3 hours by road from Kathmandu. We arrange shared jeep transfers for all groups departing from Ramechhap. Autumn departures (September to November) typically fly directly from Kathmandu.

Permit fees for 2026 remain: Sagarmatha National Park entry at NPR 3,000 (approximately USD 22) per person, and the Khumbu Pasang Lhamu Rural Municipality fee at NPR 3,000 (approximately USD 22) per person. Both are included in your Everest Trekking Company package price. A TIMS card (Trekkers Information Management System) is also included at NPR 2,000 (approximately USD 15).

Everest Base Camp and Gokyo Lakes Trek Cost for 2026 and 2027

The cost of the Everest Base Camp and Gokyo Lakes Trek ranges from USD 1,445 to USD 1,850 per person, depending on your group size. The larger the group, the lower the cost per person. Check the pricing table below and reach out via WhatsApp or email for a personalised quote.

No. of Pax	Price Per Person	Inquiry
1	USD 1,850	💬 WhatsApp ✉ Email Us
2 to 4	USD 1,545 per person	💬 WhatsApp ✉ Email Us
5 to 8	USD 1,445 per person	💬 WhatsApp ✉ Email Us

EBC and Gokyo Lakes Trek Highlights

Summit Gokyo Ri (5,357 m) for views of four 8,000 m peaks and the Ngozumpa Glacier
Walk beside all six Gokyo Lakes, the highest freshwater lake system in the world
Cross Cho La Pass (5,420 m) on a guided glacier crossing with crampons supplied
Reach Everest Base Camp (5,364 m) and stand at the foot of the world's highest mountain
Climb Kala Patthar (5,545 m) at dawn for the closest view of Everest's south face
Acclimatize in Namche Bazaar (3,440 m) with a hike to the Everest View Hotel (3,880 m)
Trek the quieter Gokyo Valley past Dole and Machhermo with far fewer trekkers than the main EBC trail
Walk beside the Ngozumpa Glacier, Nepal's longest glacier at approximately 36 km
Experience two distinct Khumbu regions, the Gokyo Valley and the classic EBC corridor, in one trip
Expert Sherpa guides with Cho La Pass crossing experience on every departure

Arrival :

Day 1: Arrive Kathmandu (1,400 m)

Your Everest Trekking Company representative meets you at Tribhuvan International Airport and transfers you to your hotel in Kathmandu. The afternoon is free to rest and recover from the flight. In the evening we host a welcome dinner at the hotel, where we introduce your guide, walk through the full itinerary, and discuss what to expect on the Cho La crossing. Overnight at a 3-star hotel in Kathmandu.

Preparation :

Day 2: Kathmandu, Pre-Trek Preparation (1,400 m)

Our Kathmandu office handles all permit paperwork today: the Sagarmatha National Park entry permit, Khumbu Pasang Lhamu Rural Municipality fee, and TIMS card. Your guide leads a three-hour gear check in the morning to make sure you have everything needed, especially crampons, gaiters, and a warm down jacket for Cho La and the high camps. The afternoon is free for sightseeing in Kathmandu, Boudhanath Stupa and Swayambhunath are both within 20 minutes of Thamel. Overnight at a 3-star hotel in Kathmandu.

Breakfast, Lunch, Dinner

Trek begins :

Day 3: Fly Kathmandu to Lukla (2,860 m), Trek to Phakding (2,652 m)

We leave for the airport at 5:30 a.m. for the 30-minute flight to Lukla’s Tenzing-Hillary Airport. The landing strip sits at the edge of a cliff at 2,860 m and the flight gives your first clear views of the high Himalaya. From Lukla we follow the Dudh Koshi river downstream for three to four hours to Phakding (2,652 m), crossing several suspension bridges along the way. This is an easy first day: altitude gain is minimal and the trail is well-graded. Overnight in Phakding teahouse.

Breakfast, Lunch, Dinner

Namche Bazaar :

Day 4: Phakding to Namche Bazaar (3,440 m)

Today’s five to six hours of walking takes us through Sagarmatha National Park, which we enter at Monjo (2,840 m). The trail climbs steadily alongside the Dudh Koshi, crossing the Hillary Bridge, a long suspension bridge roughly 60 metres above the river, before the final steep ascent to Namche Bazaar at 3,440 m. Namche is the commercial capital of the Khumbu, with a Saturday market, bakeries, gear shops, and the first reliable phone and data connections since Kathmandu. Overnight in Namche.

Breakfast, Lunch, Dinner

Acclimatization :

Day 5: Acclimatization at Namche Bazaar (3,440 m)

Rest days at altitude are not optional, skipping them causes most cases of acute mountain sickness (AMS) on EBC treks. We start the morning with a two-hour hike up to the Everest View Hotel at 3,880 m, which gives the first clear views of Everest, Lhotse, Ama Dablam, and Thamserku. The hike is gentle and keeps your body adapting to the thinner air. Back in Namche by lunch, the afternoon is free: visit the Sherpa Culture Museum, browse the gear shops, or simply rest. Overnight in Namche.

Breakfast, Lunch, Dinner

Gokyo Valley :

Day 6: Namche Bazaar to Dole (4,038 m)

We leave the main EBC trail today, turning northwest out of Namche toward the Gokyo Valley. The first hour climbs steeply through rhododendron and juniper forest before the trail levels onto a wide ridge with views back toward Namche and forward toward Cho Oyu (8,188 m). We pass through the small yak-grazing settlements of Khumjung (3,790 m) and Mong La (3,973 m) before dropping to Dole at 4,038 m. Trekker numbers drop noticeably on this side of the valley. Five to six hours walking today. Overnight in Dole.

Breakfast, Lunch, Dinner

Upper valley :

Day 7: Dole to Machhermo (4,470 m)

A shorter day to ease the altitude gain: four to five hours from Dole to Machhermo at 4,470 m. The trail climbs gradually through yak pastures and past seasonal herder camps, with the Dudh Koshi valley visible far below to the right. Machhermo is a small village with a good selection of teahouses and is often used as a staging post for acclimatization hikes up toward Cho Oyu base camp. The Himalayan Rescue Association has an outpost in Machhermo where an altitude briefing is available in season. Overnight in Machhermo.

Breakfast, Lunch, Dinner

Gokyo Lakes :

Day 8: Machhermo to Gokyo (4,790 m)

We reach the lakes today. The trail from Machhermo follows the eastern bank of the Ngozumpa Glacier moraine, passing the first Gokyo Lake (Longbonga Tsho, 4,690 m) and the second (Taujung Tsho, 4,720 m) before arriving at Gokyo village beside the third lake (Dudh Pokhari, 4,790 m). Gokyo’s teahouses sit right on the lakeshore and the water colour shifts from grey to deep green depending on the time of day and the light. The afternoon is free to walk north toward the fourth lake (Thonak Tsho, 4,840 m) if energy allows. Four to five hours walking today. Overnight in Gokyo.

Breakfast, Lunch, Dinner

Gokyo Ri :

Day 9: Gokyo Ri (5,357 m) and Lake Exploration

We leave Gokyo at 5:00 a.m. to catch dawn from the summit of Gokyo Ri (5,357 m), a two-hour climb above the village on a steep but straightforward path. From the top you can see Everest (8,849 m), Lhotse (8,516 m), Makalu (8,485 m), Cho Oyu (8,188 m), and the Ngozumpa Glacier stretching south for 36 kilometres. The view of all six lakes from this elevation is one of the defining sights of the Khumbu. We descend by 9:00 a.m. and spend the rest of the morning at the teahouse. The afternoon is free to walk to the fourth lake (Thonak Tsho) and the fifth lake (Ngozumpa Tsho, 4,990 m). Overnight in Gokyo.

Breakfast, Lunch, Dinner

Cho La prep :

Day 10: Gokyo to Thagnak (4,750 m)

A shorter transit day to position us for the Cho La crossing tomorrow. From Gokyo we walk south along the moraine, passing the second lake, and turn east toward the valley leading to Cho La. Thagnak (also called Dragnag, 4,750 m) is a small cluster of teahouses at the base of the pass route. We arrive by early afternoon, which allows time to check gear, review the crampons and ice axe, and get a full night of rest before the early start. Three to four hours walking today. Overnight in Thagnak.

Breakfast, Lunch, Dinner

Cho La Pass :

Day 11: Thagnak to Dzongla (4,830 m) via Cho La Pass (5,420 m)

The most demanding day of the trek. We leave Thagnak at 5:00 a.m. The first two hours cross a boulder field below the pass, tiring but straightforward. The third hour gains the glacier section, where we put crampons on and move in a line with the guide leading. The 200-metre glacier traverse is not technical but requires careful footwork. We reach the 5,420 m col of Cho La by mid-morning; on a clear day the view back toward Cho Oyu is exceptional. The descent to Dzongla (4,830 m) is steep and rocky for the first hour before easing to a good path. Total time is six to eight hours depending on conditions. Overnight in Dzongla.

Breakfast, Lunch, Dinner

Lobuche :

Day 12: Dzongla to Lobuche (4,940 m)

A short three to four hour walk today on mostly flat to gradually ascending terrain, giving legs and lungs time to recover after Cho La. We rejoin the main EBC trail at the Lobuche moraine junction and arrive in Lobuche (4,940 m) by early afternoon. Lobuche sits below the toe of the Khumbu Glacier and is a busy overnight stop for EBC trekkers. The settlement has a small memorial to Sherpa climbers who died on Everest expeditions. We check pulse oximeter readings here, a good baseline before the highest days ahead. Overnight in Lobuche.

Breakfast, Lunch, Dinner

Base Camp :

Day 13: Lobuche to Gorak Shep (5,164 m) and Everest Base Camp (5,364 m)

An early start from Lobuche takes us along the lateral moraine of the Khumbu Glacier to Gorak Shep (5,164 m) in two to three hours. We drop bags at the teahouse and set out immediately for Everest Base Camp (5,364 m), a two-hour return walk across the rocky glacier moraine. Base Camp itself is a flat expanse of ice and boulders where Everest expedition teams establish their high-altitude operations from April through May. The route marker flags are removed in the off-season, so your guide’s knowledge of the terrain is essential. We return to Gorak Shep for dinner. Total walking: six to seven hours. Overnight in Gorak Shep.

Breakfast, Lunch, Dinner

Kala Patthar :

Day 14: Kala Patthar (5,545 m) and Trek to Pheriche (4,240 m)

We leave Gorak Shep at 4:30 a.m. for Kala Patthar (5,545 m), the highpoint of the entire trek. The 400-metre climb from Gorak Shep takes one to one-and-a-half hours at altitude. We reach the summit as first light hits the south face of Everest, from this elevation and angle you see the mountain far more completely than from Base Camp. The Hillary Step, the Geneva Spur, and the full South Col route are all visible. We descend to Gorak Shep for breakfast, then continue down through Lobuche and across the valley floor to Pheriche (4,240 m). Seven to eight hours total. Overnight in Pheriche.

Breakfast, Lunch, Dinner

Descent begins :

Day 15: Pheriche to Namche Bazaar (3,440 m)

The long descent day: six to seven hours from Pheriche at 4,240 m down to Namche at 3,440 m. The trail is familiar from the ascent and the lower altitude makes breathing noticeably easier by the time we reach Tengboche (3,860 m) with its famous monastery. We continue through Phunki Tenga and back up to Namche in the late afternoon. The teahouses here feel like luxury after Gorak Shep, there are hot showers, phone signal, and bakeries. Many trekkers notice the physical difference in just one day of descent: clearer head, better appetite, better sleep. Overnight in Namche.

Breakfast

Final day trekking :

Day 16: Namche Bazaar to Lukla (2,860 m)

The final trekking day follows the main valley trail from Namche back to Lukla, reversing the ascent route along the Dudh Koshi river. Five to six hours of mostly downhill walking. We arrive in Lukla by mid-afternoon with time to look back at the route you have walked, settle final tips with your guide and porter, and have a celebratory meal at one of Lukla’s teahouses. Overnight in Lukla.

Breakfast

Return :

Day 17: Fly Lukla to Kathmandu, Departure

Morning flight from Lukla to Kathmandu (approximately 35 minutes). Flights operate weather-permitting from early morning and can be delayed by cloud cover in the valley, we allow buffer time before any international connections. Back in Kathmandu, your driver meets you at the domestic terminal and transfers you to your hotel or directly to the international airport. This is the end of the EBC and Gokyo Lakes Trek with Everest Trekking Company.

Breakfast

Overall Trip Rating:

5.0

- Based on 8 travel reviews

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Fantastic Trip, Guide, and Support During Emergency

By Zi Kai N
from Singapore
April 29, 2025
I recently completed the Gokyo Lakes and EBC trek with Everest Trekking Company and could not be more satisfied. The team handled the initial organisation, answering our questions and facilitating all administrative aspects. When my wife experienced Acute Mountain Sickness, the team swiftly facilitated her evacuation and provided round the clock support. Our guide Sagar was professional and friendly. He acted quickly when my wife needed to descend to a lower altitude and consistently checked on our wellbeing. His attentiveness made our trek safe and enjoyable. Our porters Dev and Chandra ensured our gear was always ready at the next stop, allowing us to trek unburdened and enjoy the surroundings. The teamwork of the entire Everest Trekking Company crew made our journey to EBC memorable. I highly recommend Everest Trekking Company for their commitment to client safety and satisfaction.
Date of Experience: April 22, 2025
Reply
This was the best adventure of our lives!

By Arek S
from Poland
April 10, 2025
A huge thank you to the team at Everest Trekking Company for professionally organising our Himalayan expedition. Communication and care before and during the expedition exceeded all our expectations. Special thanks to our guide Kiran who looked after us during the entire trek. Without him, this trip would not have been so wonderful, fun and safe. I would highly recommend Everest Trekking Company to everyone looking for an adventure in the Himalayas. See you next year!
Date of Experience: April 03, 2025
Reply
Great Trekking Experience

By Jenny S
from Germany
March 24, 2025
We did the Gokyo Lakes Trek organised by Everest Trekking Company and we are very happy with our choice. From the beginning the team was very helpful and answered all our questions very quickly. Everything went very smoothly and we also had an amazing guide Nima and a great porter Sushil. We would recommend Everest Trekking Company to everyone looking to trek in Nepal!
Date of Experience: March 17, 2025
Reply
Gokyo Valley Trek in Nepal

By Joan
from Spain
March 12, 2025
We did the Gokyo Valley Trek with Everest Trekking Company and had an amazing experience with spectacular views of Mt Everest and the high Himalayas throughout the entire trek. Thank you to the team for your patience in answering all our questions and compiling a trek to perfectly suit our requirements. Also to Bala, Lhakpa and Nima for your professional guidance and local knowledge of the Solu Khumbu region. Last but not least thank you for all the laughs and the great fun we had throughout the trek. I can highly recommend Everest Trekking Company.
Date of Experience: March 05, 2025
Reply
Just Perfect!

By Lacagi
from Italy
November 22, 2024
We had a beautiful experience in the Gokyo Valley and Renjo La Pass. The organisation of Everest Trekking Company and the experience of our guide Bala made that possible! Everything went smoothly and the scenery was absolutely remarkable. Highly recommended.
Date of Experience: November 15, 2024
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Outstanding Guide and Experience on the Gokyo Lakes Trek

By Thomas M
from Poland
November 19, 2024
We completed the Gokyo Lakes and EBC trek with our guide Kumar, and it was an outstanding experience. He was very polite, attentive, and always ready to solve any problems along the way. His knowledge of the surrounding peaks is impressive — he seems to know every single one by name. We really enjoyed trekking with him and highly recommend Kumar to anyone looking for a reliable and professional guide in Nepal.
Date of Experience: November 12, 2024
Reply
Gokyo Lakes Trek — Expertly Organised

By Carlo A
from Italy
November 12, 2024
Experience masterfully organised by Everest Trekking Company, highly recommended to all trekking enthusiasts who want to explore the Himalayan wonders. The guide Arun and the porter Lakpa were the real added value: professional, well prepared and excellent company throughout. Along the way they showed us the hidden wonders of the Gokyo valley and the surrounding peaks. We chose the Gokyo Lakes and EBC Trek over other more famous routes and it was a very good choice. Thanks again to the entire team at Everest Trekking Company!
Date of Experience: November 05, 2024
Reply
Gokyo Lakes Trek — Wonderful Time!

By James P
from United Kingdom
November 4, 2024
My partner and I completed the Gokyo Ri trek with our wonderful porter Ranjit and guide Dawa, and we had such a wonderful time! The hike to Gokyo is beautifully scenic, and Gokyo itself, the lakes, and the view from the top of Gokyo Ri is simply remarkable. A special mention to Ranjit, a very strong and determined porter who made everything look effortless. And to Dawa, a guide who values honesty, is incredibly caring and always cheerful — you cannot ask a wrong question with him. We highly recommend Everest Trekking Company if you are looking for a carefree and well-organised trek.
Date of Experience: October 28, 2024
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Essential Info for Everest Base Camp and Gokyo Lakes Trek

This page covers the essential practical information for the Everest Base Camp and Gokyo Lakes Trek including difficulty rating, the Cho La Pass requirements, fitness preparation, permits, and briefing day information at Everest Trekking Company in Kathmandu.

Trek Difficulty and Fitness Level Required

The EBC and Gokyo Lakes Trek is rated challenging, one level above the standard EBC route, due to the Cho La Pass crossing at 5,420m and the extended time above 4,500m across two separate valley systems
Maximum elevation is 5,645m at Kala Patthar, with Gokyo Ri at 5,483m and the Cho La Pass at 5,420m also reached on this combined route
Daily walking: 5 to 8 hours on most high altitude days, with Cho La crossing day being the longest and most physically demanding single day on the entire route
The Cho La Pass involves steep ascent on loose rock and ice on the upper approach, and a steep snow slope on the descent toward Lobuche. A head for heights and sure footing are required
Prior trekking experience above 4,000m is strongly recommended before attempting this combined itinerary
Crampons or microspikes and trekking poles with snow baskets should be available in the group for the Cho La crossing

Group Size and Guide Ratio

Everest Trekking Company runs the EBC and Gokyo Lakes Trek in groups of 2 to 10 trekkers
Lead guide assigned has specific Cho La crossing experience and applies a strict go or no-go protocol on crossing morning based on conditions and SpO2 readings
One porter per 1 to 2 trekkers. Porters are not asked to cross the Cho La in dangerous conditions. An alternative route via Dzongla is used if the Cho La is unsafe

Physical Preparation Guide

Begin preparation 10 to 14 weeks before departure given the longer duration and higher physical demand of this combined route
Include specific downhill training in your preparation as the descents on Cho La and from Gokyo Ri are steep and place high load on the knees
Train with trekking poles to build the arm and shoulder strength used heavily on the pass crossing sections
If possible, complete a multi-day hike of at least 4 consecutive days before departure to simulate the cumulative fatigue of this longer itinerary

Permits Required

Sagarmatha National Park Entry Permit: NPR 3,000 per person, purchased at the park entry checkpoint in Monjo on the trail
TIMS Card (Trekkers Information Management System): NPR 2,000 per person for organized group trekkers, arranged by Everest Trekking Company before departure
Khumbu Pasang Lhamu Rural Municipality Entry Fee: NPR 2,000 per person, collected at checkpoints in the lower Khumbu
Everest Trekking Company arranges all standard trekking permits on your behalf as part of the trip package. You do not need to visit any permit office yourself
Passport photocopies (minimum 4 copies) are required at various checkpoints on the route. Bring printed copies from Kathmandu

Medical Requirements and Vaccinations

No vaccinations are mandatory for entry to Nepal but Everest Trekking Company recommends being up to date on Hepatitis A, Hepatitis B, Typhoid, and Tetanus before travel
A basic pre-trek medical check is recommended for all guests over 50 or with any history of heart, lung, or blood pressure conditions
Inform Everest Trekking Company of any prescription medications, allergies, or medical conditions before departure so guides can be briefed and first aid kits stocked appropriately
Travel insurance that covers helicopter evacuation above 5,000m is mandatory for all Everest Trekking Company EBC departures. Proof of insurance is checked at the pre-trek briefing
Diabetic trekkers, trekkers with asthma, and trekkers on blood thinners should consult their doctor specifically about high altitude travel before booking
Everest Trekking Company guides carry a first aid kit stocked with altitude medication, wound care, blister treatment, and emergency supplies on all departures

Pre-Trek Briefing Day in Kathmandu

All Everest Trekking Company treks begin with a full briefing day in Kathmandu the day before departure
The briefing covers the day by day itinerary, altitude sickness symptoms and protocols, equipment check, porter introduction, and permit review
This is the day to raise any questions about gear, health, fitness, or itinerary adjustments before the trek begins
Luggage storage at the ETC Kathmandu office is arranged on briefing day. Bring your trek bag and storage bag clearly separated and labelled
If you need to rent or purchase any gear in Kathmandu, the briefing day allows time for a guided visit to the Thamel trekking shops with your guide
Domestic flight or jeep transport arrangements for the following morning are confirmed and briefed on this day

Packing List for Everest Base Camp and Gokyo Lakes Trek

Packing the right gear is one of the most important steps in preparing for the Everest Base Camp and Gokyo Lakes Trek. Too much weight slows you down and adds unnecessary strain at altitude. Too little leaves you cold, wet, or unprepared when conditions change above 4,000m. This packing list is built from years of experience guiding trekkers through the Khumbu region and reflects exactly what Everest Trekking Company recommends every guest to carry. Items in this list are proven on the route and selected for weight, performance, and availability in Kathmandu if you prefer to buy or rent locally.

Daily Clothing

Layered clothing system: lightweight moisture wicking base layers, thermal mid layers for warmth, and insulating outer layers for high camp nights
Trekking pants: comfortable and quick drying synthetic fabric
Long sleeve shirts for sun protection and short sleeve shirts for warmer lower valley sections
Warm hat and insulated gloves for cold evenings and high altitude zones
Waterproof hiking boots with ankle support, broken in for at least two weeks before the trek begins
Camp shoes or light sandals for evenings inside tea houses and lodges
Wool or synthetic hiking socks in several pairs as they dry slowly at altitude
Neck gaiter or buff for wind protection and warmth above treeline
Rain jacket or waterproof shell for unexpected weather at any elevation

Trekking Gear and Equipment

Main backpack (50 to 60 liters) carried by your Everest Trekking Company porter, plus a day pack (20 to 25 liters) you carry yourself
Trekking poles: very helpful for steep descents and river crossings throughout the Khumbu
Sleeping bag rated to at least minus 15 degrees Celsius for cold nights at higher elevations
Reusable insulated water bottle or hydration bladder, minimum 1 liter capacity
Headlamp with spare batteries for early morning starts and lodge evenings with unreliable power
Power bank with at least 20,000mAh capacity for charging camera, phone, and GPS between lodges
Sunglasses with UV400 protection and side shields for intense high altitude sun and glacier glare
Lightweight dry bags or waterproof pack liner to protect gear from rain and river crossings
Gaiters for deep snow sections on the upper route above Dingboche in early or late season

Clothing and Garment Checklist

Item	Details	Quantity
Underwear	Breathable synthetic, moisture wicking	4
Trekking socks	Wool or synthetic, thick hiking grade	3 pairs
Liner socks	Thin synthetic liner for inside hiking socks	2 pairs
Sports bra (if applicable)	Synthetic, supportive	3
Base layer pants	Merino wool or synthetic thermal	1
Base layer top	Merino wool long sleeve thermal	2
Trekking shirts	Synthetic lightweight, mix of long and short sleeve	3
Trekking pants	Synthetic quick drying, available to buy in Kathmandu	2
Rain pants	Lightweight waterproof and packable	1
Fleece or mid layer jacket	100 to 200 weight fleece for layering under shell	1
Down jacket	700 fill power or higher, required above 4,000m	1
Windbreaker or shell jacket	Waterproof, breathable, lightweight	1
Hiking boots	Waterproof with ankle support, broken in before trek	1 pair
Camp shoes	Lightweight sandals or sneakers for lodge evenings	1 pair
Thin gloves	Merino wool liner gloves	1 pair
Insulated gloves	Waterproof outer shell with warm insulation inside	1 pair
Sun hat or cap	Wide brim with neck protection for lower valleys	1
Warm beanie	Wool or fleece for high altitude camps	1
Neck gaiter or buff	Fleece lined for cold and wind above 4,000m	1

Hygiene and Safety Items

Biodegradable soap, shampoo, and personal hygiene products in small travel sizes
Toothbrush and toothpaste
High SPF sunscreen (SPF 50 or above) for intense UV exposure at altitude where sun is significantly stronger than at sea level
Lip balm with SPF to prevent cracking in cold and dry high altitude air
Insect repellent for the warmer lower sections of the trek below 3,000m in the monsoon adjacent seasons
Personal first aid kit including blister treatment, antiseptic wipes, bandages, and all prescription medications
Altitude medication if prescribed by your doctor: Diamox (Acetazolamide), ibuprofen, and paracetamol
Water purification tablets or UV pen for treating water at remote tea houses above Namche
Wet wipes and hand sanitizer for hygiene on days between shower access
Small microfiber travel towel for lodges that do not provide them

Electronics and Documents

Mobile phone with offline maps of the Khumbu region downloaded before leaving Kathmandu
Camera and spare memory cards (most trekkers find a phone camera sufficient)
Universal power adapter (Nepal uses Type C and Type D sockets in most tea houses)
Power bank with at least 20,000mAh for multiple days of charging between reliable power sources
Copies of your passport, travel insurance policy, and TIMS card and Sagarmatha National Park permit
Emergency contact numbers including the Everest Trekking Company Kathmandu base operations number saved to your phone
Travel insurance documents with your 24 hour emergency assistance number accessible offline

Equipment Rental and Purchase in Kathmandu

Sleeping bags rated to minus 15 degrees Celsius are available for rent in Thamel, Kathmandu at reasonable daily rates
Down jackets can be rented or purchased affordably from Thamel trekking shops
Trekking poles and gaiters are available for rent or low cost purchase in Kathmandu
Basic trekking clothing including pants, thermals, and base layers can all be found in Kathmandu at good quality and low cost
Everest Trekking Company will help all guests source and rent any essential equipment they need during the pre-trek briefing day in Kathmandu before departure

Extra Gear for the Cho La Pass Crossing

Microspikes or light crampons: strongly recommended for the Cho La Pass (5,420m) which regularly has ice and hard snow even outside winter months
Short gaiters: protect boots from snow on the Cho La approach and descent
Extra insulation layer for the early morning start on crossing day when temperatures are at their lowest

Travel Note for Everest Base Camp and Gokyo Lakes Trek

The EBC and Gokyo Lakes Trek is one of the most varied and demanding routes in the Khumbu region, combining two separate high altitude valleys via the Cho La Pass. This guide from Everest Trekking Company covers the specific practical preparation this combined route requires.

What Makes the EBC and Gokyo Lakes Trek Different

This is a dual valley trek that covers both the Gokyo Valley to the west and the Khumbu Valley to the east, connected by the Cho La Pass at 5,420m
The five turquoise glacial lakes at Gokyo are one of the most visually striking features of any Khumbu trek and are not on the standard EBC route
Gokyo Ri at 5,483m provides a panoramic view of four of the world’s eight thousanders: Everest, Lhotse, Makalu, and Cho Oyu from a single viewpoint
The Cho La Pass crossing is the most technically demanding section of any standard (non-climbing) ETC trek and requires crampons or microspikes in some conditions
The Gokyo Valley approach passes through Dole and Machhermo, two villages that are significantly less touristy and more authentically Sherpa than the main Khumbu corridor
This route typically takes 17 to 18 days and spends more cumulative time above 4,500m than the standard EBC route
Trekkers experience two distinct high altitude acclimatization zones which requires careful monitoring from Everest Trekking Company guides across both valleys

Cultural Highlights on the EBC and Gokyo Lakes Trek Route

Gokyo village is a small and traditional settlement with a pace of life very different from the busier Khumbu Valley further east
Dole and Machhermo villages on the Gokyo approach are rarely visited by trekkers doing the standard EBC route and offer a more authentic view of Khumbu farming and pastoral life
Tengboche Monastery is on the route in the Khumbu section and remains the cultural centrepiece of any Everest region trek
The Cho La Pass itself is a significant cultural landmark crossed by yak herders and traders moving between the two valleys seasonally
Namche Bazaar Saturday market and the Everest Museum are visited on the shared Khumbu section of the route
The five Gokyo Lakes are considered sacred in local Sherpa tradition and the largest, Dudh Pokhari, has a small gompa on its shore

Things Not to Do on the EBC and Gokyo Lakes Trek

Do not attempt the Cho La Pass crossing in the afternoon. All Everest Trekking Company Cho La crossings depart before 6am to use the most stable weather window and avoid afternoon snow risk
Do not underestimate the Cho La. It has steep icy sections on both sides in most seasons and requires a head for heights and steady footing even when conditions are good
Do not skip the Gokyo Ri summit hike. The 360 degree view from 5,483m is the best multi-peak panorama on the entire route and is only available from this side of the valley
Do not rush through the Gokyo Valley section to get to the EBC portion faster. The Gokyo acclimatization is essential preparation for the Cho La and the Khumbu high camps
Do not attempt this route in winter. The Cho La becomes impassable with deep snow and the dual valley itinerary has no safe winter alternative crossing
Do not carry more than 8kg in your day pack on Cho La crossing day. The uphill approach and steep descent on the far side are physically demanding even for fit trekkers
Do not ascend more than 300 to 500 meters sleeping altitude per day above 3,000m
Do not trek without microspikes or crampons available in your group for the Cho La crossing
Do not trek without helicopter evacuation insurance above 5,000m

Nepal Visa Information

Nepal visa on arrival is available to citizens of most countries at Tribhuvan International Airport in Kathmandu
Fees: USD 30 for 15 days, USD 50 for 30 days, USD 125 for 90 days, payable in cash in USD, EUR, or GBP at the airport counter
Bring one passport size photo, a completed immigration form, and a passport with at least 6 months validity
Pre register at nepalimmigration.gov.np before departure to save time at immigration on arrival
Visa extensions available at the Department of Immigration in Maitighar, Kathmandu if the trek takes longer than planned
Everest Trekking Company recommends a 30 day visa for most EBC itineraries to cover weather delay buffer time

International Flights to Kathmandu

Kathmandu airport code is KTM (Tribhuvan International Airport), 6 kilometers from the Thamel trekking district
From USA (New York, Los Angeles): connect via Doha on Qatar Airways, Dubai on Emirates, or Delhi on Air India, total 18 to 24 hours
From Europe (London, Frankfurt, Amsterdam): connect via Doha, Dubai, or Istanbul where Turkish Airlines flies direct to KTM, total 12 to 16 hours
From Australia (Sydney, Melbourne): connect via Singapore, Kuala Lumpur, or Bangkok, total 14 to 18 hours
Book at least 6 to 8 weeks ahead for spring (March to May) and autumn (September to November) as peak season flights sell fast
Arrive in Kathmandu at least one full day before your Everest Trekking Company pre-trek briefing to recover from long haul travel

Kathmandu to Lukla Domestic Flight

The Lukla flight takes approximately 35 minutes on small propeller aircraft operated by Tara Air and Summit Air
In peak spring season (March to May) flights depart from Manthali Airport in Ramechhap, requiring a 4 to 5 hour pre-dawn drive from Kathmandu starting at 2am to 3am
Outside peak season flights depart from Kathmandu domestic terminal directly
Luggage allowance on Lukla flights is 15kg checked plus 5kg carry on — pack accordingly
Flights are weather dependent. Everest Trekking Company monitors schedules and builds buffer days into all itineraries

Porter Weight Limits and Day Pack Guide

Your Everest Trekking Company porter carries your main bag at a maximum of 20kg including the bag weight
You carry your own day pack (5 to 8kg): water, snacks, rain jacket, camera, headlamp, sunscreen, medication, one warm layer
All ETC porters receive proper trekking gear, rain equipment, warm jackets, and altitude insurance coverage
Recommended porter tip: USD 8 to 10 per day, paid in cash at the end of the trek

Free Luggage Storage at Everest Trekking Company Office

Leave your city clothes, laptop, extra shoes, and anything not needed on the trail at our Kathmandu office at no charge
Your bags are stored securely and ready for collection on your return from the mountains
Pack your trek bag and storage bag separately at home so handover on briefing day is quick
Full storage instructions are given during your pre-trek briefing day in Kathmandu

Money, ATMs and Daily Budget

ATMs available in Kathmandu (Thamel) and Namche Bazaar (3,440m) — these are the last reliable cash machines before the high route
Carry sufficient Nepali Rupees (NPR) in cash from Namche upward. Most tea houses above Phakding do not accept cards
Budget NPR 3,500 to 5,000 per day above Namche for accommodation, three meals, and incidentals
Hot showers: NPR 200 to 500 extra. Wifi: NPR 200 to 500 per hour. Device charging: NPR 100 to 300 per charge above Namche
Lead guide tip recommendation: USD 15 to 20 per day paid in cash at trek end

Connectivity and SIM Cards

Buy an Ncell SIM card at Kathmandu airport or in Thamel. Bring your passport to register it
4G data works well in Kathmandu, Lukla, Namche, and Dingboche. Signal becomes patchy above Dingboche
Download offline maps on Maps.me or Gaia GPS before leaving Kathmandu — do not rely on data above 4,500m
Tea house wifi above Namche is slow and charged separately. At Gorakshep it is satellite only and very unreliable
Everest Trekking Company guides carry satellite phones and maintain daily contact with our Kathmandu base operations

Altitude Sickness

The Everest Base Camp and Gokyo Lakes Trek is one of the most altitude-intensive routes in the Khumbu region. You spend nights in the Gokyo Valley at 4,790m, cross the Cho La Pass at 5,420m, and then reach both Gokyo Ri at 5,483m and Kala Patthar at 5,645m. That is more days above 4,500m than the standard EBC route, with two distinct high altitude zones separated by a demanding high pass crossing. Everest Trekking Company structures this EBC and Gokyo Lakes itinerary with deliberate acclimatization stops in both valleys to manage the combined altitude exposure of this route.

What Everest Trekking Company Guides Always Carry for Altitude Safety

Portable oxygen cylinder: Every Everest Trekking Company guide carries supplemental oxygen above 4,000m and knows exactly when and how to administer it
Calibrated pulse oximeter (SpO2 monitor): Used to measure blood oxygen saturation at every major stop and every morning and evening camp check
Complete first aid kit: Stocked with altitude medicines, wound care, blister treatment, antiseptic, bandages, and emergency essentials
Diamox (Acetazolamide): Carried for both prevention and treatment of acute mountain sickness and dispensed under guide supervision when indicated
Dexamethasone: Emergency steroid for severe High Altitude Cerebral Edema (HACE), administered while rescue is being arranged
Nifedipine: Emergency medication for High Altitude Pulmonary Edema (HAPE), reduces lung vessel pressure rapidly
Gamow bag (portable altitude chamber): Available through Everest Trekking Company logistics network at key high altitude points, simulates a descent of 1,500m when helicopter rescue is delayed
Satellite phone and radio: For direct contact with Everest Trekking Company Kathmandu base operations and certified helicopter rescue teams at any point on the route

What is Altitude Sickness?

Altitude sickness, also called Acute Mountain Sickness (AMS), is the body’s reaction to reduced oxygen levels at high elevation
At sea level, air contains about 21 percent oxygen at normal atmospheric pressure
As you gain elevation, air pressure drops and each breath delivers less oxygen to your blood and organs
At 3,440m (Namche Bazaar), oxygen availability is roughly 67 percent of what it is at sea level
At 5,364m (Everest Base Camp), each breath delivers only about 50 percent of the oxygen you would get at sea level
The human body needs time to produce more red blood cells and adapt to this lower oxygen environment
When you ascend faster than your body can adjust, altitude sickness occurs
Anyone can get altitude sickness regardless of fitness level, age, or previous trekking experience
Being physically fit does not protect you from altitude sickness and does not speed up acclimatization
Experienced trekkers who have had no issues before can be affected on a new trip

Why Does Altitude Sickness Happen?

Lower air pressure at altitude means less oxygen enters the lungs with each breath
Your blood carries less oxygen to vital organs including the brain, heart, and muscles
The brain is particularly sensitive to reduced oxygen
When oxygen levels drop too fast, blood vessels in the brain can leak fluid, causing swelling inside the skull
Fluid can also build up inside the lungs in more severe cases, a condition called HAPE
The body responds by breathing faster and increasing heart rate trying to compensate for the lower oxygen
This compensation process takes days and sometimes up to two weeks to fully complete at each new altitude
Dehydration at altitude makes the situation worse because blood becomes thicker and circulates less efficiently
Cold, dry mountain air causes faster fluid loss through breathing than you would expect
Poor sleep at altitude also slows the acclimatization process, which is why nights are often the hardest time
Alcohol, strong sedatives, and sleeping pills suppress breathing and reduce blood oxygen during sleep, making acclimatization slower

When Does Altitude Sickness Start?

Mild symptoms can begin as low as 2,500m in some people
Most trekkers first notice symptoms around Namche Bazaar at 3,440m, usually on the evening of arrival or the following morning
Symptoms typically appear 6 to 12 hours after arriving at a new elevation
Symptoms often feel worse during the night and early morning hours when breathing naturally slows during sleep
The risk increases significantly above 4,000m
Dingboche at 4,360m and Lobuche at 4,940m are the zones where moderate to severe AMS becomes most likely on the EBC route
On the standard itinerary, the greatest risk nights are those spent at Dingboche, Lobuche, and Gorakshep
Even trekkers with no previous history of AMS can be affected on any given trip
Speed of ascent is the most important factor. The faster you go up, the higher your risk
People who have had AMS before are not necessarily more at risk, and those who have never had it are not necessarily protected

Altitude Risk Points on the EBC and Gokyo Lakes Trek

Namche Bazaar (3,440m): Acclimatization day at Namche is the foundation for both the Gokyo Valley and the EBC sections of this trek
Dole (4,200m): First overnight in the high altitude zone on the Gokyo Valley approach
Machhermo (4,470m): This is often the first overnight where significant AMS symptoms appear on the Gokyo approach
Gokyo (4,790m): Main overnight camp in the Gokyo Valley, SpO2 readings typically drop 5 to 10 percent below Namche baseline
Gokyo Ri (5,483m): Daytime summit hike from Gokyo, one of the highest viewpoints on the Gokyo Lakes trek
Cho La Pass (5,420m): High technical crossing connecting the Gokyo Valley to the standard EBC route, requires an early start and full acclimatization before attempting
Lobuche (4,940m): Arrival after the Cho La crossing means the body has had a full high-exertion day at altitude, rest and close monitoring are priority that evening
Gorakshep (5,140m): Highest sleeping point on the Gokyo and EBC combined trek
Everest Trekking Company runs double SpO2 checks on Cho La crossing days and will delay or cancel the crossing if any trekker shows moderate AMS signs

Symptoms of Altitude Sickness: Mild AMS

Headache, often described as a dull pressure at the front or sides of the head
Fatigue and general tiredness not explained by the day’s walking distance or effort
Loss of appetite, especially for heavy or oily foods
Nausea, sometimes with mild vomiting in the evenings
Difficulty sleeping or very light, broken sleep with frequent waking
Dizziness when standing up or changing position quickly
Slight shortness of breath after minor exertion such as walking up stairs or a short slope
A feeling of general unwellness that is hard to describe specifically
Mild swelling of fingers noticed when removing rings or tightening watch straps

Symptoms of Altitude Sickness: Moderate AMS

Persistent and worsening headache that does not improve with paracetamol or ibuprofen
Significant nausea and repeated vomiting making it hard to keep fluids or medication down
Severe fatigue where basic tasks like getting dressed or walking to the toilet feel exhausting
Difficulty walking in a straight line, similar to the feeling of being off balance
Shortness of breath that occurs even at rest, not just during activity
Reduced urine output and noticeably dark yellow urine despite drinking fluids
Visible swelling of the face, hands, or feet
Dry cough that becomes more persistent through the day and night
Inability to concentrate or follow simple conversation
A worsening score on the Lake Louise AMS Assessment used by our guides

Symptoms of Altitude Sickness: Severe AMS, HACE and HAPE

High Altitude Cerebral Edema (HACE) is swelling of the brain caused by fluid leaking from blood vessels at extreme altitude
HACE symptoms include severe confusion, disorientation, and irrational behavior
Loss of coordination and inability to walk without support are key warning signs of HACE
Slurred speech and extreme drowsiness are serious signs that demand immediate action
Severe headache that does not reduce with any medication is a red flag for HACE
Loss of consciousness can occur in advanced cases if descent is delayed
High Altitude Pulmonary Edema (HAPE) is the buildup of fluid inside the lungs and is the leading cause of death from altitude sickness
HAPE symptoms begin with a persistent dry cough that progresses to producing pink or frothy mucus
Extreme breathlessness even when lying still is the hallmark symptom of HAPE
A crackling or gurgling sound can sometimes be heard in the chest when breathing
Rapid heart rate, blue lips, and blue fingertips (cyanosis) indicate dangerous oxygen deprivation from HAPE
Both HACE and HAPE require immediate descent of at least 500 to 1,000 meters along with emergency medication

How to Prevent Altitude Sickness

Ascend slowly. Never gain more than 300 to 500 meters of sleeping altitude per day above 3,000m
Follow the climb high, sleep low rule. Hike higher during the day but return to lower elevation to sleep
Take all acclimatization rest days on your itinerary seriously. The ETC itinerary includes mandatory rest days at Namche and Dingboche for this reason
Stay well hydrated. Drink 3 to 4 liters of clean water per day throughout the trek, more on heavy walking days
Avoid alcohol during the first 2 to 3 days at each new altitude zone
Avoid sleeping pills and strong sedatives above 3,000m as they suppress breathing during sleep
Eat well even when your appetite is low. Small, frequent meals are easier to manage than large ones
Avoid flying directly to high altitude without a gradual approach schedule
Monitor urine color throughout the day. Pale yellow means you are well hydrated. Dark yellow means drink more
Walk at a slow, steady pace. You should be able to hold a normal conversation while trekking without getting out of breath
Rest as soon as you feel any symptoms rather than pushing on hoping they will pass

Medication for Altitude Sickness Prevention and Treatment

Diamox (Acetazolamide) is the most widely used medication for altitude sickness prevention
It works by stimulating faster and deeper breathing, which increases blood oxygen levels throughout the day and night
Standard preventive dose is 125mg to 250mg twice daily, starting 24 hours before ascending to a new high altitude zone
Common side effects include tingling in the fingers and toes, increased urination, and a strange taste with carbonated drinks
Diamox is a sulfa family drug and must be avoided by anyone with sulfa drug allergy or aspirin sensitivity
Always consult a doctor before starting Diamox as it requires a prescription in most countries
Diamox does not mask symptoms. It genuinely helps the body acclimatize faster, unlike pain medication alone
Ibuprofen 400mg every 8 hours has been shown in multiple clinical studies to reduce both headache and mild AMS severity
Dexamethasone is a steroid used for emergency treatment of severe HACE and reduces brain swelling rapidly but is not a substitute for descent
Nifedipine is used in emergency treatment of HAPE and reduces blood pressure in the lung vessels
Everest Trekking Company guides carry Diamox, Dexamethasone, and Nifedipine on every trek above 3,000m

How Everest Trekking Company Monitors and Manages Altitude Sickness

Every Everest Trekking Company guide is trained and certified in Wilderness First Aid including altitude illness management protocols
All guides carry calibrated pulse oximeters to measure blood oxygen saturation (SpO2) at every stop and campsite
A reading above 90 percent SpO2 is generally acceptable. A reading below 85 percent triggers immediate evaluation and action
We carry emergency Diamox, Dexamethasone, Nifedipine, and supplemental oxygen cylinders in the first aid kit on every trek
Portable altitude chambers (Gamow bags) are available through our logistics network at key high altitude points
Every guest is given a full briefing on AMS symptoms, warning signs, and our response plan on day one before the trek begins
We run a formal health check and SpO2 assessment at Namche Bazaar and again at Dingboche
Our itinerary is built with safety buffer days so no trekker is ever pressured to push on when they are not feeling well
Guides check SpO2 readings of every trekker each morning and evening and record the results
Any reading that drops 10 or more percent compared to a trekker’s baseline triggers immediate investigation and close monitoring
We use the Lake Louise Scoring System to objectively assess AMS severity rather than relying only on trekker self-reporting
Guests showing even mild symptoms receive reduced activity, extra rest, increased fluids, and hourly monitoring
No trekker is allowed to ascend further if they have a moderate or severe AMS score until the guide is satisfied they have recovered fully

Rescue Process When Altitude Sickness Becomes Serious

If a trekker cannot descend safely on foot, our guide contacts Everest Trekking Company base operations in Kathmandu immediately via satellite phone or radio
We work with certified helicopter rescue operators based in Lukla and Kathmandu with proven experience in high altitude rescue
Rescue helicopters can reach most points on the EBC route within 30 to 90 minutes depending on weather and light conditions
Our team contacts the helicopter company directly to avoid any delay in communication or response
The helicopter lands at the nearest safe landing zone such as Pheriche, Dingboche, Namche, or Lobuche depending on where the guest is located
While waiting for the helicopter, the guide administers emergency medication, Dexamethasone for HACE or Nifedipine for HAPE
Supplemental oxygen is administered immediately if available from the local lodge or our kit
If the helicopter is delayed more than 20 minutes and conditions are severe, the Gamow bag is inflated and the trekker placed inside
A Gamow bag simulates a descent of approximately 1,500 meters by increasing the air pressure inside the sealed bag, giving immediate relief
The trekker is kept warm, monitored continuously, and given small sips of fluid if conscious and able to swallow safely
A guide or porter accompanies the trekker to the helicopter and if possible all the way to the hospital in Kathmandu
Our Kathmandu operations team meets the helicopter and coordinates handover to hospital medical staff
Full health records from the trek including SpO2 logs, symptom timeline, and medications given are provided to the hospital team
Everest Trekking Company contacts the trekker’s emergency contact and travel insurance company as soon as evacuation is confirmed
We assist with all insurance documentation and stay in contact with the trekker and their family through the full recovery process

Travel Insurance and Financial Preparation for Altitude Rescue

Every trekker joining an Everest Trekking Company trip is required to carry travel insurance that covers helicopter evacuation above 5,000m
Rescue helicopter flights typically cost between USD 3,000 and USD 6,000 per flight depending on the pick up location and operator
Hospital treatment costs in Kathmandu vary depending on the severity of the illness and length of stay
Our team helps coordinate insurance claims and provides all documentation required by the insurer
Never attempt the Everest region without verified helicopter evacuation cover in your travel insurance policy
Check that your policy specifically states coverage above 5,000m as many standard adventure policies have elevation limits of 4,000m or 4,500m
Save your insurance policy number and the insurer’s 24 hour emergency number in your phone before the trek begins
Everest Trekking Company can recommend verified travel insurance providers if you need guidance before booking your trek

Accommodation and Food

Kathmandu | Hotel Options

Hotel Moonlight
Hotel Cozy Heaven
Hotel Surya Heritage
Hotel Devine Kathmandu

Attached bathroom with hot shower
Clean bed sheets
Electric sockets and wifi
Coffee machine
Full restaurant menu: Nepali, continental, Indian, Chinese dishes
City-quality food and service

Phakding (2,610m) | Hotel Pine Forest

Attached bathroom, upgraded facility with hot shower
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: dal bhat, momo, pasta, pizza, eggs, soup, hot drinks and more
City-quality food variety and portion size
Oxygen cylinder on site

Namche Bazaar (3,440m) | Hotel 8848

Attached bathroom, upgraded facility with hot shower
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: pizza, pasta, steak, yak burger, dal bhat, momo, soup, sandwich, cake, espresso coffee
City-quality food variety and portion size
Oxygen cylinder on site

Dole (4,200m) | Hotel Trekkers

Attached bathroom, upgraded facility with hot shower
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: dal bhat, momo, pasta, pizza, eggs, soup, hot drinks and more
City-quality food variety and portion size
Oxygen cylinder on site

Machhermo (4,470m) | Namgyal Lodge

Attached bathroom, upgraded facility with hot shower
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: dal bhat, momo, pasta, pizza, eggs, soup, hot drinks and more
City-quality food variety and portion size
Oxygen cylinder on site

Gokyo (4,790m) | Hotel Namaste

Attached bathroom, upgraded facility with hot shower
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: dal bhat, soup, pasta, momo, eggs, noodles, hot drinks
City-quality food variety and portion size
Oxygen cylinder on site

Dzonla (4,830m) | Hotel Himalaya

Shared bathroom facilities, hot shower available
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: dal bhat, soup, noodles, eggs, hot drinks
City-quality food variety and portion size
Oxygen cylinder on site

Lobuche (4,940m) | Hotel Altitude Home

Attached bathroom, upgraded facility with hot shower
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: dal bhat, momo, pasta, pizza, eggs, soup, hot drinks and more
City-quality food variety and portion size
Oxygen cylinder on site

Gorakshep (5,164m) | Hotel Himalaya

Shared bathroom facilities, hot shower available
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: dal bhat, soup, noodles, pasta, eggs, hot drinks
City-quality food variety and portion size
Oxygen cylinder on site

Pheriche (4,371m) | Everest Trekkers Hotel

Attached bathroom, upgraded facility with hot shower
Clean bed sheets changed for each guest
Electric sockets for charging
Wifi available
Coffee machine
Enough bathrooms, well maintained
Full food menu: soup, dal bhat, pasta, momo, noodles, egg dishes, pizza, drinks
City-quality food variety and portion size
Oxygen cylinder on site

Everest Base Camp and Gokyo Lakes Trek Overview

What Makes This Route Different

The Full Route

Best Season to Trek

Permits Required

Trekking with Everest Trekking Company

2026 Update: Lukla Flights and Permit Fees

Everest Base Camp and Gokyo Lakes Trek Cost for 2026 and 2027

EBC and Gokyo Lakes Trek Highlights

Everest Base Camp and Gokyo Lakes Trek Itinerary

EBC and Gokyo Lakes Trek Package

EBC and Gokyo Lakes Package Includes

Not Included in the Package

Join Our Fixed Trip Starting Date

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Essential Info for Everest Base Camp and Gokyo Lakes Trek

Trek Difficulty and Fitness Level Required

Group Size and Guide Ratio

Physical Preparation Guide

Permits Required

Medical Requirements and Vaccinations

Pre-Trek Briefing Day in Kathmandu

Packing List for Everest Base Camp and Gokyo Lakes Trek

Daily Clothing

Trekking Gear and Equipment

Clothing and Garment Checklist

Hygiene and Safety Items

Electronics and Documents

Equipment Rental and Purchase in Kathmandu

Extra Gear for the Cho La Pass Crossing

Travel Note for Everest Base Camp and Gokyo Lakes Trek

What Makes the EBC and Gokyo Lakes Trek Different

Cultural Highlights on the EBC and Gokyo Lakes Trek Route

Things Not to Do on the EBC and Gokyo Lakes Trek

Nepal Visa Information

International Flights to Kathmandu

Kathmandu to Lukla Domestic Flight

Porter Weight Limits and Day Pack Guide

Free Luggage Storage at Everest Trekking Company Office

Money, ATMs and Daily Budget

Connectivity and SIM Cards

Altitude Sickness

What Everest Trekking Company Guides Always Carry for Altitude Safety

What is Altitude Sickness?

Why Does Altitude Sickness Happen?

When Does Altitude Sickness Start?

Altitude Risk Points on the EBC and Gokyo Lakes Trek

Symptoms of Altitude Sickness: Mild AMS

Symptoms of Altitude Sickness: Moderate AMS

Symptoms of Altitude Sickness: Severe AMS, HACE and HAPE

How to Prevent Altitude Sickness

Medication for Altitude Sickness Prevention and Treatment

How Everest Trekking Company Monitors and Manages Altitude Sickness

Rescue Process When Altitude Sickness Becomes Serious

Travel Insurance and Financial Preparation for Altitude Rescue

Accommodation and Food

Kathmandu | Hotel Options

Phakding (2,610m) | Hotel Pine Forest

Namche Bazaar (3,440m) | Hotel 8848

Dole (4,200m) | Hotel Trekkers

Machhermo (4,470m) | Namgyal Lodge

Gokyo (4,790m) | Hotel Namaste

Dzonla (4,830m) | Hotel Himalaya

Lobuche (4,940m) | Hotel Altitude Home

Gorakshep (5,164m) | Hotel Himalaya

Pheriche (4,371m) | Everest Trekkers Hotel

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