Three Passes Trek – Complete 2027 Guide

Trek Overview

If you have already done a classic tea-house route and want a bigger loop, the Three Passes Trek is the natural next step in the Khumbu. The route crosses Renjo La (5,360 m), Cho La (5,420 m), and Kongma La (5,535 m) in a single 18 to 21 day circuit from Lukla. You see Gokyo's turquoise lakes, the base of Island Peak in the Chhukung Valley, Everest Base Camp itself, and Kala Patthar, all on one continuous traverse. We treat this as the most ambitious tea-house trek in the Everest region, and it rewards walkers who plan it well.

Why Visit

You come here to see the full breadth of the Khumbu in a single trek, not just the standard EBC corridor. The Renjo La sunrise ranks above Kala Patthar for many trekkers because it frames Everest, Lhotse, Makalu, and Cho Oyu above the turquoise Gokyo lakes in one composition. The Cho La connects the Gokyo Valley to the main EBC trail over a glaciated pass that gives a genuine high-mountain feel without rope work. The Kongma La is the highest and quietest of the three, crossing between Lobuche and Chhukung with the least foot traffic of any pass in the region.

Best Time to Trek

Spring (March to May) and Autumn (October to November) are the only safe windows for this trek because the three passes become dangerous in snow. Autumn has the most stable weather and the clearest views, but it is also the busiest season on shared sections of the trail. Spring is warmer, with rhododendron bloom below Namche, and is preferred by trekkers who want quieter lodges. Winter crossings are possible only for experienced groups with full winter gear and a flexible schedule.

Difficulty Level

We rate the Three Passes Trek as Strenuous, the highest tea-house trekking grade in Nepal. Three passes above 5,300 metres in one circuit, multiple 5,000-metre nights, and long days on rough terrain push even fit trekkers. There is no technical climbing, but the Cho La has a short glaciated section where microspikes are useful in early season. You should be confident walking 6 to 8 hours a day for several consecutive days above 4,500 metres.

Duration

The standard itinerary runs 18 to 21 days from Lukla, with the longer end including all three acclimatisation days. We recommend 20 days as the minimum for safe pacing, which gives you a buffer for weather delays on the passes. Shorter 16-day versions exist but they cut acclimatisation and raise altitude-sickness risk. Add three days for Kathmandu logistics, and your full trip length is closer to 23 or 24 days.

Route Details

The classic loop goes counter-clockwise, climbing to Namche, then west to Thame and Lungden before crossing the Renjo La down to Gokyo. From Gokyo you cross the Ngozumpa Glacier, climb the Cho La to Dzongla, then rejoin the EBC trail at Lobuche. After a Kala Patthar sunrise and base camp visit, you cross the Kongma La down to Chhukung, then descend via Dingboche and Namche to Lukla. The direction can be reversed, but counter-clockwise gives the most gradual altitude gain.

Itinerary Overview

Days 1 to 3: Lukla, Namche, Thame. Day 4: Trek to Lungden. Day 5: Cross Renjo La to Gokyo. Day 6: Gokyo Ri and fifth lake. Day 7: Cross Ngozumpa Glacier and Cho La to Dzongla. Day 8: Dzongla to Lobuche. Day 9: Lobuche to Gorak Shep, Kala Patthar at sunset. Day 10: Everest Base Camp, descend to Lobuche. Day 11: Cross Kongma La to Chhukung. Day 12: Acclimatisation at Chhukung. Days 13 to 17: Descend via Dingboche, Tengboche, Namche, and Lukla. Days 18 to 20: Buffer and return to Kathmandu.

최대 고도

The highest point is Kongma La at 5,535 metres (18,159 feet), just below the altitude of Kala Patthar on the standard EBC trek. The Cho La reaches 5,420 metres and the Renjo La 5,360 metres, so you spend three consecutive days above 5,300 metres on the high section. Oxygen levels at this height are roughly half of sea level, and acclimatisation is non-negotiable. The itinerary above 4,500 metres must be paced to allow for one acclimatisation day per 500 metres of gain.

Weather

Autumn weather is the most reliable, with cold, clear mornings and afternoon clouds that rarely produce precipitation. Spring is warmer but cloudier, with the first afternoon thunderstorms appearing in May. Night temperatures above 5,000 metres fall to minus 15 degrees Celsius even in peak season, and wind chill on the passes is severe. Snow can close any of the three passes for two to four days in either season, so build a buffer into your schedule.

Accommodation

Tea-house lodges run the full length of the route, but they are simpler and quieter on the Thame, Lungden, and Chhukung sections. Rooms cost $3 to $10 per night on the standard plan, with food purchased at the same lodge. Lodges at Gokyo, Dzongla, and Chhukung fill early in peak season and may require a 4 pm lights-out rule because of limited solar power. We recommend booking ahead through your guide for the high-section nights in October and November.

Tea Houses

Tea houses on the three quieter sections, Thame, Lungden, Marulung, Dzongla, and Chhukung, are smaller and more traditional than the busy EBC lodges. The dining room is the only heated space, and bedrooms are unheated with thin foam mattresses. Blankets are provided but a minus 20 degree Celsius sleeping bag is mandatory. The host families on these sections often speak less English than on the main trail, which makes the experience feel more authentically Sherpa.

캠핑

This trek uses tea-house lodging; camping is not typically required. Some groups carry a backup tent for the Cho La crossing in case lodges in Dzongla are full, but this is rare.

Food

The menu on the busier sections matches the standard Khumbu tea-house fare of dal bhat, momos, chow mein, pasta, and porridge. On the quieter Thame, Lungden, and Chhukung sections the menu is shorter and the food more local, with tsampa (roasted barley flour), Sherpa stew, and yak cheese more common. Dal bhat remains the value choice, with unlimited refills at every lodge. Carry energy bars and electrolyte powder because long pass days leave little time for a proper lunch.

Drinking Water

Boiled water is sold at every lodge for $1 to $5 per litre depending on altitude, and a UV pen or filter bottle pays for itself within the first week. Stream water above 4,000 metres is generally clean enough to treat with a UV pen or chlorine drops. We recommend against bottled water because of the waste problem in the national park. Plan for four litres per day above 4,500 metres, more on pass days.

전기

Hydroelectric power runs to Namche and Thame, with solar power on the more remote sections. Charging fees run from $2 to $6 per device, and the most remote lodges on the Renjo La approach may not offer charging at all. Carry two power banks, a 10,000 mAh for daily use and a 20,000 mAh backup for the three high-section days. Keep all batteries inside your sleeping bag at night because cold drains them fast.

Internet & Mobile Network

Everest Link Wi-Fi is available at most lodges from Lukla to Gokyo and on the main EBC trail, with cards sold in Namche. The signal disappears on the Renjo La approach, the Cho La, and the Kongma La, so plan to be offline for two or three stretches of the trek. Ncell and NTC mobile signal is patchy above Namche and unreliable on the high sections. We recommend a satellite messenger like a Garmin inReach for safety on this route.

수송

The trek starts and ends at the Lukla airstrip, a 35-minute Twin Otter flight from Kathmandu. Weather delays are routine and we always build two buffer days into a Three Passes itinerary. Helicopter return from Lukla to Kathmandu is available for $500 to $600 per seat when flights are cancelled. The trail itself is walking only, with no road access above Lukla and no internal flights during the trek.

Required Permits

You need the Sagarmatha National Park Entry Permit, the Khumbu Pasang Lhamu Rural Municipality Entrance Permit, and the TIMS Card. Permits cost roughly $50 combined and can be issued in Kathmandu or at the Monjo checkpoint. The same permits cover the entire Three Passes loop because the route stays inside the national park. Your guide or agency will normally arrange everything before you fly to Lukla.

포장 목록

Pack for serious cold, a minus 20 degree Celsius sleeping bag, a down jacket rated to minus 20, windproof shell, thermal base layers, a warm hat and two pairs of gloves. Microspikes are useful for the Cho La in spring and autumn because the upper section can be icy. Trekking poles are essential for the steep descents off all three passes. Carry a headlamp with spare batteries, a basic first aid kit with Diamox, and a satellite messenger for safety.

Budget Guide

The longer duration pushes costs above the standard EBC trek, with food and accommodation the main variable. The table below shows typical 2027 ranges for a 20-day trek.

Photography Tips

The Renjo La at sunrise is the single most photogenic moment on the entire trek, so arrive 30 minutes before dawn and shoot wide for the lake-and-mountain composition. The Cho La crossing gives dramatic ice and rock textures in mid-morning light, and the Kongma La descent into the Chhukung Valley offers a sweeping view of Island Peak. Gokyo Ri at sunset is quieter than at sunrise and gives warm light on Cho Oyu. Carry a telephoto for compressed shots of climbers on Island Peak from Chhukung.

Wildlife

The Thame and Lungden valleys are good habitat for Himalayan tahr, blue sheep, and occasionally the snow leopard. The Ngozumpa Glacier area has snowcock and lammergeier, and the Chhukung Valley supports Himalayan griffon vultures. Musk deer appear at dawn near the upper forests of birch and juniper. Wildlife sightings are quieter on this route than on the standard EBC trail because of lower foot traffic.

Flora

The route spans a wider range of vegetation zones than the standard EBC trek because it includes the drier Bhote Kosi valley. Lower elevations have pine, fir, birch, and rhododendron forest, with peak bloom in April. The Renjo La approach has high-altitude juniper scrub and cushion plants, and the Ngozumpa Glacier edge has lichen and moss. The Chhukung side has alpine meadow with gentians and edelweiss in late spring.

Local Culture

The Thame Valley is the spiritual home of Sherpa mountaineering, birthplace of Tenzing Norgay's contemporaries and many Everest summiteers. Thame Monastery, perched above the valley, hosts the Mani Rimdu masked dances in spring. The Bhote Kosi side has more Tibetan influence, with trade routes crossing into Tibet through the Nangpa La. We recommend a side visit to the Thame Monastery on day 3 of the trek if time allows.

Local Villages

Thame is one of the oldest Sherpa villages in the Khumbu, with a 17th-century monastery and traditional stone houses. Lungden and Marulung are small Bhote Kosi trading villages with a strong Tibetan flavour, where you see yaks and trading caravans. Gokyo is a seasonal settlement of just six lodges beside the third lake. Chhukung, at the foot of Island Peak, is the highest permanent village on the route and a base for climbers.

Safety Tips

Weather on the three passes can change in 30 minutes, so check conditions with your guide the night before each crossing and turn back if snow is falling. Carry microspikes for the Cho La in shoulder seasons. Never cross a pass alone, and brief your guide on any medical conditions before leaving Kathmandu. Helicopter rescue insurance is mandatory, and we recommend a satellite messenger because mobile signal is unreliable on the high sections.

Altitude Sickness Guide

Three passes above 5,300 metres in one trek mean cumulative altitude stress, not just single-pass risk. We recommend a preventive Diamox dose of 125 mg twice daily from Namche onward, with a rest day before each pass. Symptoms to watch for are severe headache, vomiting, loss of coordination, and fluid in the lungs. The itinerary above 4,500 metres must include one rest day per 500 metres of altitude gain, and you should never sleep more than 500 metres above the previous night.

Emergency Contacts

The Himalayan Rescue Association clinic at Pheriche is the closest Western-style medical post, a day's walk from most of the route. Helicopter rescue is available through Fishtail Air, Saga Rescue, and Simrik Air, all on 24-hour call from Kathmandu. Keep your insurance policy number, rescue contact, and passport copy with your guide at all times. The tourist police in Kathmandu can be reached at 1144, and the Solukhumbu district police at 100.

Responsible Tourism

The three quieter sections of this trek have less waste infrastructure than the main EBC trail, so pack out all plastic, batteries, and sanitary waste. Tip your porter and guide fairly, with $6 per day per porter and $12 per day per guide being a reasonable minimum for a trek of this length. Use boiled or filtered water rather than buying bottled. Respect monastery etiquette in Thame and remove shoes before entering prayer halls.

자주 묻는 질문

These are the questions we hear most often from trekkers planning the Three Passes Trek, with answers reflecting current trail conditions for 2027 to 2030.

요약

The Three Passes Trek is the most ambitious tea-house trek in the Everest region, combining the Gokyo Lakes, the main EBC trail, and the Chhukung Valley into a single 18 to 21 day circuit. With three passes above 5,300 metres and a budget of $1,800 to $3,000, it is a serious undertaking that rewards experienced trekkers with the broadest possible view of the Khumbu. The route is quiet on its western and eastern arms and well-supported throughout. We rank it as the best choice for fit trekkers who have already done a shorter Himalayan trek.

결론

Completing the Three Passes Trek is a genuine mountaineering achievement without ever putting on crampons, and that is what makes it so special. You see more of the Khumbu than on any other tea-house route, from the turquoise Gokyo lakes to the base of Island Peak, all in a single circuit. Plan 20 days, budget $1,800 to $3,000, and treat the three passes with the respect they deserve, and the trek will repay you with the most complete Everest-region experience possible on foot. Book 2027 and 2028 dates early because lodge space on the quieter sections is limited.