Everest Cho La Pass Trek

Useful Info

Best Time & Weather Conditions

The Everest Cho La Pass Trek is best undertaken during spring (March to May) and autumn (September to November). These windows offer stable weather, clear skies, and manageable temperatures during the trekking season. Indeed, the best time for Everest Chola Pass adventures ensures your safety and enjoyment.

Seasonal Comparison

Spring (March to May)

Spring brings warmer days and blooming rhododendrons at lower elevations. Morning temperatures at Gokyo range from -5°C to 5°C, while afternoons reach 10°C to 15°C. Cho La Pass may still hold snow from winter, requiring additional caution. Visibility is excellent, though afternoon cloud build-up is common. This season offers warmer temperatures and rhododendron forests in full bloom, making it highly recommended for most trekkers.

Autumn (September to November)

Autumn provides the clearest skies of the year. Temperatures are slightly cooler than spring, with nights dropping to -10°C at high camps. The post-monsoon atmosphere is crisp, and mountain views are consistently sharp. This is the most popular trekking season, offering the best visibility all year and stable weather conditions. Teahouses fill quickly during this period, so advance booking is advised.

Winter (December to February)

Winter is possible for experienced trekkers but presents significant challenges. Cho La Pass becomes dangerously icy, and several high-altitude lodges close. Temperatures plummet to -20°C or lower at night. Lukla flights are more reliable than in other seasons, and there are fewer trekkers on the trail. This season is recommended only for those with extensive high-altitude and winter trekking experience.

Monsoon (June to August)

Monsoon season is not recommended. Heavy rain turns trails to mud at lower elevations, while clouds obscure mountain views. Lukla flights face frequent delays and cancellations. The Cho La Pass crossing is particularly hazardous due to snow and reduced visibility. Leeches are also common at lower elevations during this period.

Temperature Guide by Elevation

Best Time Summary

• Optimal Seasons: Spring (March–May) and Autumn (September–November)
• Peak Months: October and April offer the best balance of weather stability, temperature, and visibility
• Avoid: Monsoon season (June–August) due to weather hazards and poor visibility

Permits, Logistics & Transportation

Required Permits

Sagarmatha National Park Entry Permit

• Cost: NPR 3,000 (approximately $23 USD)
• Issued at Nepal Tourism Board office in Kathmandu or park entry gate in Monjo
• Bring passport and two passport-sized photographs

Khumbu Pasang Lhamu Rural Municipality Permit

• Cost: NPR 3,000 (approximately $23 USD)
• Obtained in Lukla or arranged by your trekking company in advance
• Required for all trekkers entering Khumbu region

Your trekking company typically arranges both permits before departure. Carry photocopies, as checkpoints along the route require permit verification.

Transport Options

Kathmandu to Lukla Flight

The standard route is a 30-minute flight from Tribhuvan International Airport to Tenzing-Hillary Airport in Lukla. Flights operate from early morning and are subject to weather delays. During peak season (October–November, April–May), flights may depart from Ramechhap Airport. This is a four to five-hour drive east of Kathmandu. It reduces congestion and improves schedule reliability.

Alternative Overland Route

If flights are unavailable, drive to Phaplu or Salleri. Then, begin trekking from there. This adds 2 to 3 days to the trek itinerary but eliminates flight dependency. Moreover, the lower-altitude start also aids getting used to altitude.

Contingency Planning

Lukla flights are notoriously unpredictable. Weather can ground planes for days, particularly during monsoon and winter. Build at least two buffer days into your schedule – one before the trek and one after. Travel insurance should cover trip delays and cancellations.

Preparation & Training

Fitness Plan

The Chola Pass trek demands strong heart fitness and leg strength. Begin training three to four months before departure. Focus on:

• Aerobic base: Run, cycle, or swim four to five times weekly for 45 to 60 minutes
• Hill training: Hike with a weighted pack (10 kg) on steep terrain. Simulate trekking days with six to eight-hour outings
• Strength work: Incorporate squats, lunges, and step-ups twice weekly to build leg and core stability
• Altitude simulation: If accessible, train at altitude or use an altitude training mask for adjustment advantages

Consistency matters more than intensity. Build gradually to avoid injury and allow your body to adapt to sustained effort.

Gear & Packing List

Clothing

• Base layers (merino wool or synthetic)
• Insulating mid-layers (fleece or down jacket)
• Waterproof and windproof outer shell
• Trekking trousers (quick-dry fabric)
• Warm hat, sun hat, and buff or scarf
• Gloves (liner and insulated pair)
• Thermal underwear for high camps

Footwear

• Broken-in trekking boots (ankle support, waterproof)
• Microspikes or crampons for Cho La Pass
• Camp shoes or sandals for evenings

Equipment

• Sleeping bag rated to -10°C or colder
• Trekking poles (adjustable, with snow baskets)
• Headlamp with spare batteries
• Sunglasses (UV protection, Category 4)
• Water bottles or hydration bladder (3 liters capacity)
• Stuff sacks for organizing gear

Accessories

• Sunscreen (SPF 50+) and lip balm
• Personal first aid kit
• Water purification tablets or filter
• Toiletries and quick-dry towel
• Trekking map and compass or GPS device

Insurance & Medical Readiness

Travel Insurance Requirements

Purchase comprehensive travel insurance covering:

• Helicopter rescue from altitudes up to 6,000 meters
• Medical treatment and hospitalisation
• Trip cancellation and interruption
• Lost or stolen gear

Policies must explicitly state coverage for trekking above 5,000 metres. Verify that Cho La Pass (5,420 m) falls within the policy’s altitude limit.

Medical Preparation

Consult your doctor before departure. Discuss altitude sickness prevention and carry prescribed medications such as acetazolamide (Diamox). Update routine vaccinations. Consider shots for hepatitis A, typhoid, and rabies. Pack a personal medical kit with blister treatments, painkillers, antibiotics, and rehydration salts.

Route, Map & Elevation Profile

Elevation Chart

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Map & Route Overview

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The Everest Base Camp Cho La Pass trek follows a clockwise circuit through the heart of the Everest region. Beginning at Lukla (2,840 m), the route ascends the Dudh Koshi Valley to Namche Bazaar (3,440 m). Then, it diverges west towards the Gokyo Valley. Gradual elevation gain continues through Dole (4,200 m), Machhermo (4,470 m), and Gokyo (4,790 m).

After the ascent of Gokyo Ri (5,357 m), trekkers cross the high-altitude crossing of the Cho La Pass (5,420 m). This is the technical high point throughout the trek. The route then joins the standard Everest Base Camp trek trail at Dzongla (4,620 m). It continues through Lobuche (4,940 m) and Gorak Shep (5,164 m).

Side trips include Everest Base Camp (5,364 m) and Kala Patthar (5,545 m), the maximum altitude. The Everest Base Camp route provides access to these iconic destinations.

Descent follows the Khumbu Valley through Pheriche (4,371 m) and Namche Bazaar before returning to Lukla. Total distance covered is approximately 130 kilometres with over 8,000 metres of total elevation gain. The Everest Base Camp via Gokyo route offers a complete experience of the region.

Key Elevation Points

• Lukla: 2,840 m
• Namche Bazaar: 3,440 m
• Gokyo: 4,790 m
• Gokyo Ri: 5,357 m
• Cho La Pass: 5,420 m
• Kala Patthar: 5,545 m (highest point)
• Everest Base Camp: 5,364 m

Terrain Characteristics

In the lower sections below 3,500 m, the trail winds through dense forests, suspension bridges, and cultivated terraces. Then, as you climb higher, the middle elevations between 3,500 and 4,500 m gradually open into alpine meadows and scattered boulder fields. Beyond this, the high-altitude zones above 4,500 m present glacial moraine, exposed rock, and stretches of permanent snow. For example, trekkers face the challenge of Cho La Pass, which involves scrambling over ice-covered boulders and crossing short snow slopes.

Accommodation, Food & Water

Teahouse Accommodation

Teahouses are family-run lodges providing basic sleeping rooms and communal dining areas. Rooms contain twin beds with foam mattresses, pillows, and blankets. Walls are thin, and insulation is minimal. Therefore, expect cold nights at higher elevations. Bathrooms are shared, with squat or Western-style toilets. Hot showers cost extra and may be unavailable above 4,500 metres.

Namche Bazaar and Lukla offer the most developed facilities. These include heated dining rooms, bakeries, and internet access. Mid-elevation lodges in Dole and Machhermo provide adequate comfort with limited amenities. High camps like Gorak Shep and Dzongla are basic, with unheated rooms and simple meals during the trek.

Food on the Trail

Teahouse menus feature a mix of Nepali, Tibetan, and Western dishes. For instance, common options include dal bhat (rice and lentils), fried noodles, momos (dumplings), soups, and pasta. In addition, breakfast choices include porridge, pancakes, eggs, and toast. Moreover, meals are calorie-dense to support the energy demands of trekking.

Food quality is generally good in lower villages but becomes simpler at altitude. Fresh vegetables and meat are scarce above Namche. Portions are generous, and vegetarian options are widely available. Carry snacks such as energy bars, nuts, and chocolate for trail consumption.

Water Safety

Do not drink untreated water from taps or streams. Purchase bottled water, though plastic waste is a growing environmental concern. Most lodges provide boiled water for a small fee. Fill your bottles each morning. Alternatively, use water purification tablets or a portable filter to treat water from natural sources.

Dehydration speeds up altitude sickness. Therefore, aim for three to four liters of fluid daily. Herbal tea and electrolyte drinks supplement water intake.

Health, Safety & Altitude Strategy

Altitude Sickness

Acute Mountain Sickness (AMS) results from rapid ascent to high altitude. As a result, symptoms can include headache, nausea, dizziness, fatigue, and loss of appetite. In most cases, mild AMS affects trekkers at some point. However, it usually resolves with rest and proper hydration.

Severe forms – High Altitude Pulmonary Edema (HAPE) and High Altitude Cerebral Edema (HACE) – are life-threatening. HAPE symptoms include breathlessness at rest, coughing, and chest tightness. HACE presents as confusion, loss of coordination, and severe headache. Both conditions require immediate descent and medical attention.

Prevention Strategies

• Ascend slowly. Follow the itinerary’s adjustment schedule
• Stay hydrated. Drink three to four liters of water daily
• Avoid alcohol and sleeping tablets at altitude
• Eat regular meals even if appetite decreases
• Consider acetazolamide (Diamox) to aid adjustment. Consult your doctor before use

What to Do If Symptoms Appear

Stop ascending. Rest for 24 to 48 hours at the current altitude. If symptoms worsen or do not improve, descend immediately. Your guide will assess your condition and arrange evacuation if necessary.

Emergency Protocols

Guides carry first aid kits and oxygen cylinders for emergencies. Portable altitude chambers (Gamow bags) may be available for stabilising patients before descent. Communication with lodges and rescue services occurs via satellite phone or radio.

Helicopter evacuation is the fastest rescue method. Depending on the weather, choppers can reach most trekking areas within hours. Evacuation costs range from $3,000 to $10,000. These are covered by travel insurance if policy terms are met. Inform your guide immediately if you feel unwell. Early intervention prevents problems.

Medical Supplies

Carry a personal first aid kit containing:

• Blister treatment (Compeed, moleskin)
• Pain relief (ibuprofen, paracetamol)
• Altitude sickness medication (Diamox, dexamethasone)
• Antibiotics for stomach upset (ciprofloxacin)
• Rehydration salts (ORS)
• Bandages, antiseptic wipes, and medical tape
• Personal prescription medications

Guides carry additional supplies. However, self-sufficiency reduces delays in treatment.

Culture, Villages & Local Life

Sherpa Heritage

The Khumbu region is home to the Sherpa people, an ethnic group with Tibetan roots. Centuries ago, Sherpas moved to Nepal, settling in high valleys and gradually adapting to life above 3,000 metres. Over time, their culture blended Tibetan Buddhism with mountain traditions, creating a distinct identity centred on resilience, hospitality, and spiritual practice.

In Sherpa villages, stone houses feature carved wooden windows, while prayer wheels stand at entrances. Additionally, colourful prayer flags stretch across rooftops. Moreover, monasteries anchor community life, serving as centres for religious ceremonies and festivals. Trekkers are welcome to observe prayers; however, they should always ask permission before photographing monks or interiors.

Throughout your journey in the Everest region, you will witness this living culture firsthand. Indeed, each village along the Everest Base Camp and Cho La Pass route tells a story of adaptation and survival in one of Earth’s harshest environments.

Key Villages

Namche Bazaar

The region’s unofficial capital, Namche, is a bustling market town built into a horseshoe-shaped hillside. Here, shops sell trekking gear, handicrafts, and fresh produce. In addition, the Sherpa Culture Museum offers insight into local history and mountaineering achievements. On Saturdays, the weekly market attracts traders from surrounding valleys. Overall, this vibrant hub serves as the cultural and commercial heart of the Base Camp Chola Pass trek.

Lukla

The gateway to the Khumbu, Lukla sits at 2,840 metres where most treks begin and end. The town clusters around Tenzing-Hillary Airport, one of the world’s most challenging landing strips. Lodges, bakeries, and gear shops line the main street. Despite its small size, Lukla buzzes with nervous energy as trekkers prepare for departure or celebrate their return.

Dingboche

Located at 4,410 metres in a wide valley, Dingboche serves as a crucial adjustment stop. Here, stone walls protect barley fields from wind and livestock. From this vantage point, the village offers clear views of Lhotse, Island Peak, and the dramatic north face of Ama Dablam. Moreover, lodges are well-equipped to support altitude adjustment, with heated dining rooms and medical facilities conveniently nearby.

Tengboche

Perched at 3,860 metres, Tengboche Monastery overlooks the Dudh Koshi Valley, with Everest visible in the distance. Established in 1916, it is the Khumbu’s most significant monastery. Visitors can attend morning and evening prayers, accompanied by chanting and ceremonial horns. Additionally, the monastery’s courtyard offers unobstructed views of Ama Dablam.

Lobuche

At 4,940 metres, Lobuche consists of a handful of basic lodges serving trekkers bound for Everest Base Camp. The settlement sits below the Khumbu Glacier in a barren, rocky landscape. Temperatures drop sharply at night, and facilities are minimal. Memorial cairns for fallen climbers line the trail just before the village, serving as sobering reminders of the mountain’s power.

Gokyo

This small settlement beside the third serene Gokyo Lake serves trekkers heading to Gokyo Ri or Cho La Pass. Lodges are basic but comfortable. The setting – turquoise water framed by Cho Oyu – is among Nepal’s most photogenic. The village is quieter than those on the main EBC route.

Cultural Etiquette

• Walk clockwise around chortens, mani walls, and monasteries
• Remove shoes before entering homes and religious sites
• Avoid pointing feet towards people or sacred objects
• Ask permission before photographing individuals, especially monks
• Dress modestly. Shorts and sleeveless tops are unsuitable in villages
• Decline offers to purchase religious artifacts, which may be culturally unsuitable to sell

Photography & Viewpoint Guide

Top Viewpoints

Gokyo Ri (5,357 m)

The sunrise climb to Gokyo Ri delivers 360-degree views of Everest, Lhotse, Makalu, and Cho Oyu – four of the world’s six highest peaks. The turquoise Gokyo Lakes contrast with the grey Ngozumpa Glacier below. Arrive at the summit before 7 AM for optimal light. Use a wide-angle lens to capture the full panorama. The view from Gokyo Ri is unforgettable.

Kala Patthar (5,545 m)

Kala Patthar offers the closest ground-level views of Mt Everest’s southwest face. Nuptse and Pumori frame the scene. Dawn light illuminates the peaks in shades of gold and pink. A telephoto lens (70–200 mm) isolates Everest’s summit pyramid. Expect sub-zero temperatures. Therefore, protect camera batteries in inner pockets.

Cho La Pass (5,420 m)

The pass itself is dramatic, with prayer flags fluttering against a backdrop of ice-streaked cliffs. From here, photograph from the eastern side of the pass looking west towards Cholatse and Ama Dablam. At midday, light reduces contrast on the glaciers. Therefore, use a polarising filter to deepen blue skies and reduce snow glare.

Ngozumpa Glacier

The world’s longest Himalayan glacier stretches for 36 kilometres. Along the route, walk along its lateral moraine between Machhermo and Gokyo for close-up shots of crevasses, ice towers, and meltwater pools. In the late afternoon, light enhances texture and shadow.

Photography Tips

• Protect gear from cold. Batteries drain quickly in freezing temperatures. Carry spares in warm pockets
• Use UV or polarizing filters to reduce haze and enhance contrast
• Shoot in RAW format for greater post-processing flexibility
• Capture local life respectfully. Portraits require permission and build rapport before asking
• Include foreground elements (prayer flags, trekkers, yaks) to add depth and scale to mountain shots

Tips & Advice for Success

Pacing and Acclimatisation

Walk slowly, especially above 4,000 metres. The phrase “pole pole” (Swahili for “slowly slowly”) applies here. Rest frequently. Do not rush to reach the day’s destination. Proper pacing reduces fatigue and lowers altitude sickness risk.

Take adjustment days seriously. Even if you feel strong, resist the urge to skip rest days or speed up the itinerary. Your body needs time to produce more red blood cells. This helps it adjust to lower oxygen levels.

Weather Preparedness

Mountain weather changes rapidly. Carry waterproof layers even on clear days. Mornings are typically calm. Then, clouds build after midday. Plan demanding sections (Cho La Pass, Gokyo Ri, Kala Patthar) for early morning when visibility is best.

Cold is the primary challenge above 5,000 metres. Temperatures drop to -15°C or lower at night. Layer clothing and keep extremities warm. Frostbite can occur within minutes on exposed skin during windy conditions.

Environmental Responsibility

The Khumbu’s fragile ecosystem faces pressure from increased trekking traffic. Follow Leave No Trace principles:

• Carry out all non-biodegradable waste. Pack used batteries, wrappers, and toiletries
• Use designated toilets. If none are available, bury waste at least 50 meters from water sources
• Reduce plastic use. Refill water bottles rather than purchasing new ones
• Stay on marked trails to prevent erosion
• Do not disturb wildlife or remove plants
• Support lodges that use solar power and manage waste responsibly

Interaction with Porters and Guides

Treat your guide and porter with respect. They work in harsh conditions and carry loads that exceed international labour standards. Ensure your porter has adequate clothing and footwear. If you notice they are struggling, reduce the load or hire an additional porter.

Tipping is customary but not mandatory. This depends on group size and trek length. Tips are best given at the completion of your trek in a group envelope.

Staying Healthy

• Wash hands frequently, especially before meals. Carry hand sanitiser
• Avoid raw vegetables and unpeeled fruit at high altitude
• Brush teeth with bottled or boiled water
• Get adequate sleep. Rest speeds up adjustment
• Monitor your body. Persistent headaches, dizziness, or nausea warrant immediate action

After the Trek & Next Steps

Recovery in Kathmandu

Spend one to two days in Kathmandu. This allows your body to recover. For accommodation, book a hotel with hot showers and comfortable beds. Additionally, consider a massage to ease muscle soreness accumulated over 17 days of trekking. While in the city, explore the restaurants and sample Nepali cuisine beyond dal bhat.

Visit sites you missed before the trek. Pashupatinath Temple, Boudhanath Stupa, and Patan Durbar Square offer cultural immersion without physical demands. Shop for souvenirs in Thamel’s markets. You can find thangka paintings, singing bowls, and handmade textiles.

Sharing Your Experience

Document your journey through photographs and journal entries. Additionally, share responsibly on social media. Moreover, credit guides and porters by name (with their permission). Finally, consider writing a review for your trekking company. Detailed feedback helps future trekkers make informed decisions.

If you encountered exceptional service or challenges, communicate directly with the company. Constructive reviews improve industry standards. They also support ethical operators.

Comparing Related Treks

Renjo La Pass Alternative

Some trekkers choose the Renjo La route instead of Cho La Pass. The Renjo La Pass (5,360 m) connects Gokyo Valley with Thame. It offers different mountain views. However, it’s less technical than Cho La Pass. The Everest Chola Pass route provides more direct access to Everest Base Camp.

Three Pass Trek

For those seeking another trek challenge, the Three Pass Trek combines Renjo La, Cho La Pass, and Kongma La. This creates a complete circuit of the Everest region. The trek takes approximately 19-21 days. It’s more demanding than the standard Everest Chola Pass Trek.

Classic Everest Base Camp Route

The classic Everest Base Camp route follows a direct path from Lukla to Everest Base Camp and back. It skips the Gokyo Valley entirely. This version takes 12-14 days. It’s less challenging than the Everest Base Camp via Gokyo option.

The Everest Chola Pass Trek combines the best of both routes. Trekking to the Everest region via Cho La Pass provides complete valley coverage.

Trek with Experience, Return with Stories

The Everest Cho La Pass Trek 17 days stands among Nepal’s most rewarding alpine journeys, combining the classic Everest Base Camp experience with the remote beauty of the Gokyo trek. This 17-day adventure demands strong physical fitness, mental endurance, and respect for high-altitude conditions. In return, it offers unmatched Himalayan views and deep immersion in Sherpa culture, making it one of the most complete trekking experiences in the Everest region. Furthermore, this trek is an adventurous journey that challenges and rewards in equal measure.

From the serene turquoise Gokyo Lakes to the icy challenge of Cho La Pass, the route captures the full range of the Khumbu’s character. Trekkers encounter glacial moraines, rhododendron forests, windswept passes, and prayer-flag-draped summits that have long connected mountain communities and ancient trade paths. Each step reveals the region’s spiritual and natural harmony, where the quiet strength of the Himalaya meets the warm hospitality of the Sherpa people. Indeed, this trek is an adventurous experience throughout the entire Everest region.

At Nepal Hiking Adventure Co., we guide this trek with experienced Sherpa-led teams who focus on safety, adjustment, and environmental care. Our Everest Cho La Pass Trek itinerary balances adventure with proper rest, ensuring trekkers stay healthy and fulfilled throughout. Whether you seek personal achievement, photographic inspiration, or a genuine cultural connection, this journey delivers. Moreover, this Base Camp Chola Pass trek is a perfect blend of challenge and beauty. Join us and book your Everest Cho La Pass Trek today to experience the Khumbu at its most breathtaking and memorable.

Contact us today to plan your trek, customise your route, or speak directly with our Himalayan trekking experts for personalised guidance before your journey.