Everest Base Camp Trek via Gokyo Lakes and Cho La Pass – 15 Days

The journey begins with a mountain flight to Lukla, followed by a gradual walk through the Dudh Koshi Valley to Phakding. From there, the trail crosses suspension bridges and enters Sagarmatha National Park before climbing to Namche Bazaar, the principal trading town of the Khumbu region. An acclimatization day in Namche includes a hike towards Hotel Everest View, where clear weather may reveal Mount Everest, Lhotse, Ama Dablam, Thamserku and other Himalayan peaks.

Above Namche, the route separates from the busier Everest Base Camp trail and turns towards the Gokyo Valley. The path passes through Kyangjuma, Mong La and Phortse Tenga before climbing through rhododendron and juniper forest to Dole. As the trek continues through Machhermo, the landscape becomes increasingly alpine, with views of Cho Oyu and the surrounding mountains. The trail then reaches the first and second Gokyo Lakes before arriving at Gokyo village beside the third lake, Dudh Pokhari.

An acclimatization and exploration day at Gokyo is one of the defining experiences of the trek. The early-morning climb to Gokyo Ri at 5,357m offers a sweeping panorama of Everest, Lhotse, Makalu and Cho Oyu, together with the Gokyo Lakes and the vast Ngozumpa Glacier. Trekkers who prefer a longer valley walk may choose an excursion towards the fourth and fifth lakes instead of climbing Gokyo Ri, depending on weather, trail conditions and the guide’s recommendation.

After Gokyo, the trail crosses the rugged Ngozumpa Glacier to Thangnak, the staging point for Cho La. The following day is the most demanding part of the journey. An early start is required for the climb across rocky, snowy or icy terrain to Cho La Pass at approximately 5,420m. Conditions can change quickly, and the crossing is undertaken only when the guide considers the route safe. Technical mountaineering experience is not normally required, although microspikes or similar traction equipment may be necessary when snow or ice is present.

From Cho La, the route descends to Dzongla and continues to Lobuche, where it rejoins the classic Everest Base Camp trail. The trek then follows the Khumbu Glacier to Gorak Shep and onward to Everest Base Camp at 5,364m. Although Everest’s summit is not clearly visible from Base Camp, the Khumbu Icefall, glacial landscape and surrounding peaks make this one of the journey’s most memorable locations.

The following morning, the trail climbs to Kala Patthar at 5,545m, the highest point of the itinerary and one of the best viewpoints for Mount Everest, Nuptse, Pumori and the Khumbu Glacier. The return journey descends through Pheriche, Pangboche and Tengboche before reaching Namche and Lukla.

The Gokyo Cho La Everest Base Camp Trek is more strenuous than the classic 12-day EBC itinerary. Trekkers should be comfortable walking for several consecutive days on steep, rocky and uneven trails while carrying a daypack. Two acclimatization stages—at Namche and Gokyo—help the body adjust, but good fitness does not remove the risk of altitude illness. Our experienced local guide monitors the group’s condition, sets a steady pace and makes safety-based decisions throughout the trek.

Spring from March to May and autumn from late September to November normally offer the most dependable conditions. Even during these periods, snowfall, wind or ice can affect Cho La and mountain weather can delay Lukla flights. We strongly recommend keeping at least one contingency day in Kathmandu after the trek.

Trip Information

Trek Difficulty and Who This Trip Is For

This trek is graded demanding because it reaches several locations above 5,000m, crosses Cho La Pass and includes repeated walking days on steep, rocky and glacial terrain. Most days involve 5–7 hours of walking, while the Cho La crossing and some return stages may require 7–9 hours.

Technical climbing experience is not normally necessary, but participants should have good cardiovascular fitness, leg strength, balance and the mental resilience required for a long high-altitude journey. Previous multi-day trekking experience is strongly beneficial. Active first-time Himalayan trekkers may complete the route with appropriate preparation, but this is not the best introductory alternative for someone who has never completed long hikes on uneven terrain. The classic 12-day Everest Base Camp Trek is a more suitable choice for travellers who prefer to avoid a high-pass crossing.

Physical Preparation

Begin training at least 8–12 weeks before departure. Build endurance through regular uphill walking, stair climbing, cycling, running or swimming, and include progressively longer hikes while carrying the daypack you plan to use in Nepal. Strength exercises for the legs, core and balance can help with the steep ascent and descent around Cho La.

Training improves comfort and endurance, but physical fitness does not prevent altitude illness. Trekkers should arrive rested, disclose relevant health conditions and consult a qualified medical professional before travelling if they have concerns about high altitude, heart or lung conditions, medications or previous altitude reactions.

Altitude and Acclimatization

The itinerary includes an acclimatization day in Namche Bazaar and another exploration/acclimatization day in Gokyo. Sleeping elevations generally increase gradually through Dole and Machhermo before reaching Gokyo. The shorter walk to Thangnak also allows additional recovery before Cho La.

Anyone travelling above 2,500m can experience altitude illness, regardless of age or fitness. Common early symptoms may include headache, nausea, dizziness, unusual fatigue, poor appetite or disturbed sleep. Tell the guide immediately if symptoms occur. The guide may recommend rest, a route change or descent; continuing higher with worsening symptoms is unsafe. Breathlessness at rest, confusion or loss of coordination requires urgent action. This information is general and does not replace medical advice.

Cho La Pass Conditions and Safety

Cho La is a high trekking pass rather than a technical climbing route, but it can contain snow, hard ice, loose rock and steep sections. The group normally starts before sunrise because early conditions are often more stable and the crossing is long. Warm layers, waterproof boots, gloves, a headlamp and trekking poles are important. Microspikes or similar traction equipment may be required depending on snow and ice.

The guide’s safety decision is final. If Cho La is closed or unsafe, the route may be changed, delayed or turned back. It may not be possible to reach every advertised destination within the original 15 days after a major weather-related alteration. Himalayan Windows will coordinate the safest practical alternative, but additional accommodation, transport or flight costs created by circumstances beyond our control are not included unless specifically stated.

Best Time for the Trek

The most suitable periods are March to May and late September to November. Spring normally brings longer daylight, gradually warmer conditions and expedition activity at Everest Base Camp. Autumn often offers clear skies, dry trails and excellent mountain visibility.

Weather remains unpredictable at high altitude in every season. Heavy snow can affect Cho La in early spring or late autumn. Winter trekking is possible for highly experienced and properly equipped groups, but extreme cold and snow may close the pass. The summer monsoon generally brings cloud, rain at lower elevations, poor visibility and unstable trail conditions, so it is not recommended for this itinerary.

Accommodation

Accommodation during the trek is provided in locally operated lodges or teahouses, normally in basic twin-sharing rooms. Rooms usually contain two beds, mattresses, pillows and blankets, but they are not heated. A warm four-season sleeping bag is strongly recommended.

Facilities become simpler with altitude. Attached bathrooms may be available at lower elevations for an additional charge, while Gokyo, Thangnak, Dzongla, Lobuche and Gorak Shep commonly have shared toilets and limited washing facilities. Dining rooms may be heated in the evening, usually around a central stove. Single rooms can be requested, but availability cannot be guaranteed at the higher settlements during busy periods.

Meals and Drinking Water

Breakfast, lunch and dinner are included during the trek. Breakfast and dinner are served at the overnight lodge, while lunch is normally taken at a teahouse along the route. Menus commonly include dal bhat, soups, noodles, fried rice, potatoes, pasta, momos, eggs, porridge, pancakes, bread and simple vegetable dishes. Menu variety and fresh ingredients become more limited at higher elevations.

We recommend choosing freshly cooked food and limiting meat at higher elevations because supplies are transported without a continuous refrigerated chain. Vegetarian meals are widely available. Please inform us in advance about allergies, coeliac disease or other dietary requirements so we can brief the guide and lodges, although cross-contamination cannot always be completely eliminated in remote kitchens.

Drinking water is not included. Trekkers can purchase boiled or filtered water at lodges or use purification tablets or an appropriate filtration system. Single-use plastic bottles should be minimized where possible.

Lukla Flights and Contingency Time

Flights to and from Lukla operate under visual flight conditions and are affected by cloud, wind and visibility. Delays and cancellations are common when weather deteriorates. During busy trekking seasons, airlines may operate Lukla flights from Ramechhap Airport. This requires an early 4–5-hour road transfer from Kathmandu, depending on traffic and road conditions.

Keep at least one full contingency day in Kathmandu after the trek and avoid booking an international flight immediately after the planned return from Lukla. If a flight is cancelled, Himalayan Windows will assist with rebooking and practical alternatives. Helicopter transfers may sometimes be available at additional cost, subject to weather, operational approval and the traveller’s agreement.

Permits and Licensed Guide

Himalayan Windows arranges the trekking documents and entry fees required for the route, including the Sagarmatha National Park permit, Khumbu Pasang Lhamu Rural Municipality entry permit/Trek Card and TIMS Card where applicable under current regulations. Permit rules and fees can change, and the final documentation will follow the requirements in force at the time of travel.

The trek is led by an experienced, government-licensed local guide. A guide is particularly important for the Ngozumpa Glacier and Cho La sections, where snow, ice, poor visibility and changing trails can make route-finding difficult.

Porter, Baggage and Daypack

One porter is provided for every two trekkers. To protect the porter and comply with flight limitations, each traveller should keep the duffel bag to approximately 10kg. Carry personal valuables, water, warm layers, rain protection, camera, medication and documents in a comfortable daypack of approximately 5–7kg.

Lukla Airlines commonly applies a total baggage allowance of approximately 15kg per passenger, divided between checked and hand baggage, although the exact allowance can vary by airline. Excess baggage is charged directly by the airline and may travel on a later flight when aircraft weight limits are reached.

Electricity, Wi-Fi and Mobile Coverage

Electricity and device charging are available at many lodges for an additional fee, but the supply may depend on solar power and can be unreliable. Carry a power bank and spare camera batteries, keeping them warm at night to reduce power loss.

Paid Wi-Fi is available in many settlements, but speed and reliability decline at higher elevations. Mobile coverage may work in parts of the route but should not be expected every day. Inform family or colleagues that communication can be interrupted for several days.

Travel Insurance and Emergency Arrangements

Comprehensive travel insurance is required. The policy should cover trekking up to at least 6,000m, emergency helicopter evacuation, medical treatment, hospitalization, trip interruption, cancellation, baggage loss and flight delays. Confirm directly with the insurer that high-altitude trekking and helicopter rescue in Nepal are covered; a general travel policy may exclude them.

The trekking team carries a group first-aid kit and can coordinate emergency assistance. Rescue flights depend on weather, aircraft availability and insurer or payment authorization. Himalayan Windows arranges communication and logistics, but all rescue, evacuation and treatment charges remain the traveller’s responsibility.

Pre-Trek Briefing and Kathmandu Arrangements

One day before departure, we arrange a briefing at our office, your hotel or another convenient location. The meeting introduces the guide, reviews the itinerary, discusses current weather and Lukla flight arrangements, checks essential equipment and answers final questions.

Kathmandu accommodation is not included in this 15-day package, which starts with the transfer for the Lukla flight and ends on arrival back in Kathmandu. We can book pre- and post-trek hotels and arrange additional airport transfers on request.