ISLAND PEAK EXPEDITION
Trip Description
Island Peak sits at the southern end of the Lhotse Shar ridge, within Sagarmatha National Park — one of Nepal's UNESCO World Heritage Sites. The peak is bounded to the north by the immense south face of Lhotse, to the south by the Imja Lake, to the east by Cho Polu and Baruntse, and to the west by the Lhotse Glacier and the settlement of Chhukung. This positioning, deep within the inner Khumbu and flanked by giants on every side, gives the mountain an extraordinary sense of remoteness and scale despite being one of the more accessible climbing peaks in the region.
The route to the summit follows the Southwest Face, the standard and most established line on the mountain. From Base Camp at approximately 5,100m, the path crosses glaciated moraine terrain before reaching the foot of the headwall. The headwall rises approximately 300 metres at a consistent angle, protected throughout by fixed ropes. At the base of the headwall, a crevasse that has grown significantly over recent years is now assisted by a ladder installed by the Nepal Mountaineering Instructors' Association, a practical measure that has improved safety and accessibility for all teams.
Above the headwall, the route joins the summit ridge — a narrow, exposed ridge that runs for approximately 300 metres to the summit point. The ridge is not technically steep but demands careful footwork and confident movement in crampons. The summit itself is a small, flat area with space for only four or five people at a time — an intimate and surprisingly peaceful spot given the drama of the climb below it. The views from the top are remarkable in every direction: Everest, Lhotse, Makalu, Ama Dablam, Nuptse, Baruntse, and the full sweep of the inner Khumbu.
The approach through the Chhukung Valley is one of the quieter and more beautiful sections of any trekking route in the Everest region. Beyond Dingboche, the main Everest Base Camp trail diverges and the valley narrows, the crowds thin, the terrain opens up, and the glaciated world of the upper Khumbu becomes the dominant feature of the landscape. This approach is a significant part of what makes the Island Peak experience so complete.
Trip Overview
Island Peak, officially named Imja Tse is one of the most popular and well-loved climbing objectives in the Himalaya. Rising to 6,189 metres above the Chhukung Valley in the heart of Nepal's Khumbu region, it stands within a few kilometres of Everest and Lhotse, framed by some of the most dramatic mountain scenery on the planet. The name Island Peak came from the British Mount Everest Expedition of 1953, whose members observed from Dingboche that the peak appeared to rise like an island from a vast surrounding sea of ice — a description that remains entirely accurate today.
The peak carries significant mountaineering history. The southwest summit was first climbed in 1953 by a training party that included Tenzing Norgay, Charles Evans, Alfred Gregory, and Charles Wylie — members of the same expedition that would go on to make the first ascent of Everest just weeks later. The true main summit was first reached in 1956 by Hans-Rudolf Von Gunten and Sherpa companions, as part of the Swiss expedition that made the first ascent of Lhotse. In 1983, the Nepal Mountaineering Association formally renamed the peak Imja Tse, though Island Peak has remained the name by which climbers around the world know it.
Today, Island Peak is one of the most sought-after first Himalayan climbing objectives available. Classified Alpine Grade PD+ — just above moderate — the route demands basic mountaineering technique including crampon use, ice axe, fixed rope ascending, and glacier travel, but does not require the sustained technical skill of peaks like Ama Dablam or Cholatse. The defining feature of the climb is the 300-metre headwall, a steep mixed snow and ice face above Base Camp that leads to the exposed summit ridge. The headwall is protected by fixed ropes throughout, and a short ladder section assists passage across the crevasse at its base. The summit ridge itself is narrow and exposed but not steep, leading to a small, flat summit with room for only a few people at a time.
The approach to Island Peak follows the classic Khumbu trekking route from Lukla through Namche Bazaar and Tengboche before branching into the Chhukung Valley — one of the quieter and more beautiful side valleys of the Everest region. An acclimatization day in Chhukung, an ascent of Chhukung Ri (5,546m) for altitude preparation, and a structured Base Camp technical training session all precede the summit push.
At Alpinist Climber Expeditions, we guide Island Peak with the same professionalism and safety standards we apply to every expedition we organize — IFMGA-certified guides, a minimum 1:3 guide-to-member ratio, 1:1 Climbing Sherpa support on summit day, and a full medical kit and satellite phone carried throughout. For those choosing the premium option, IFMGA Guide Mr. Prakash Sherpa leads personally.
Expedition Highlights
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One of the most iconic first Himalayan climbing objectives — historically significant and deeply rewarding
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Set within the heart of the Everest region — Lhotse's south face rises directly above the Base Camp
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The 300-metre headwall — a dramatic, fixed-rope-protected mixed face that is the defining challenge of the climb
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Narrow, exposed summit ridge leading to one of the finest 6,000m summit views in Nepal
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Summit panorama: Everest, Lhotse, Makalu, Ama Dablam, Baruntse, Nuptse, and more
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Acclimatization ascent of Chhukung Ri (5,546m) — a standout viewpoint in the Everest region
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Hands-on technical training session at Base Camp before the summit push
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Option for 1:1 private summit experience alongside IFMGA Guide Mr. Prakash Sherpa
Detailed Itinerary
A representative from Alpinist Climber Expeditions meets you at Tribhuvan International Airport and transfers you to your hotel in Kathmandu. Once settled, you meet your expedition guide and fellow team members. The evening opens with a welcome dinner — a warm and informal introduction to the team, the journey ahead, and the flavours of Nepali cuisine.
The morning begins with a full expedition briefing — route overview, safety protocols, equipment checks, and Ministry of Tourism permit formalities. At the team meeting, you receive your Alpinist Climber Expeditions duffel bag and cap, and confirm your packing for the days ahead. The afternoon is spent visiting UNESCO World Heritage Sites in Kathmandu — ancient Hindu temples, Buddhist stupas, and the historic Newari architecture of the old city provide a culturally rich start to the expedition.
An early mountain flight from Kathmandu to Lukla (2,840m) takes approximately 35 to 40 minutes, with sweeping views of the Himalayan range as the first light catches the high peaks. On landing, the team assembles for a final equipment check before the trail begins. The walk to Phakding follows the Dudh Koshi River valley through Sherpa villages decorated with prayer flags and mani stones — a gentle and beautiful introduction to Khumbu life.
The trail today passes two suspension bridges over the Dudh Koshi before entering the Sagarmatha National Park checkpoint at Monjo. A long, steep ascent through rhododendron forest leads to the final ridge above Namche — where Everest, Lhotse, and Ama Dablam appear for the first time, framed against the deep blue of the high-altitude sky. Namche Bazaar, the main hub of the Khumbu, is a lively and well-equipped settlement with everything the team needs before moving higher.
A structured acclimatization day in Namche. A morning hike to the Everest View Hotel ridge at approximately 3,800m follows the principle of climbing high and sleeping low — one of the most effective tools for altitude adaptation. The views across Everest, Lhotse, Nuptse, and Ama Dablam from this ridge are among the finest accessible on foot in the region. The afternoon is free to explore Namche's market, bakeries, and guesthouses.
Leaving Namche, the trail descends through pine and rhododendron forest before climbing to the ridge at Tengboche. The famous Tengboche Monastery — one of the most significant Buddhist monasteries in Nepal — sits at this ridge with a panoramic view of Ama Dablam, Everest, Lhotse, Nuptse, Thamserku, and Kangtega. After a visit to the monastery, the trail descends to Diboche, which sits slightly lower and warmer than Tengboche — a more comfortable overnight stop before the climb to Dingboche the following morning.
From Diboche, the trail crosses the Imja Khola on a suspension bridge and climbs through Pangboche — a traditional Sherpa village with one of the oldest monasteries in the Khumbu, well worth a brief stop for blessings before the technical climb ahead. The path then rises steadily through the Imja Valley, passing stone-walled fields of barley and buckwheat, before reaching Dingboche. From Dingboche, Ama Dablam, Thamserku, Kangtega, and the Nuptse-Lhotse ridge dominate the horizon in every direction.
Leaving the main Everest Base Camp trail at Dingboche, the route branches east into the Imja Khola valley toward Chhukung — a quieter and less-crowded path than the route to Lobuche and EBC. The trail passes through glacial moraine and icy stream crossings as the valley narrows and the peaks grow closer. Island Peak itself becomes visible ahead for the first time — a striking pyramid of snow and rock rising above the valley head. Chhukung is a small, seasonal settlement that serves primarily as a rest and acclimatization point for teams heading to Island Peak and Imja Tse.
An early start for the ascent of Chhukung Ri (5,546m) — a non-technical peak directly above the village that provides one of the finest acclimatization viewpoints in the entire Everest region. From the top, the view encompasses the entire inner Khumbu: Everest, Lhotse, Makalu, Ama Dablam, Island Peak, Baruntse, and the Amphu Labsa. The ascent takes two to three hours from Chhukung and provides a critical acclimatization step before the move to Base Camp.
This day is also used to review personal equipment — crampons, harness, ice axe, and jumar should all be checked and fitted correctly before Base Camp. The guide is available throughout for any questions or adjustments.
After breakfast, the trail leaves Chhukung and climbs south before turning east into the wide, glaciated valley beneath Island Peak's Southwest Face. The path crosses the lateral moraine of the Lhotse Glacier and follows a stream through a progressively more dramatic and remote landscape before arriving at Base Camp at approximately 5,100m. Tents are pitched, a hot meal is prepared, and the climbing phase of the expedition formally begins. The headwall rises directly above — now seen clearly for the first time from below.
A full rest and structured training day at Base Camp. Your IFMGA guide leads a hands-on session covering all the technical skills needed for the climb: crampon technique on snow and ice, ice axe use and self-arrest, harness fitting and checking, fixed rope technique using a jumar, and safe movement across the headwall and summit ridge. A short practice session on the terrain immediately above Base Camp allows the team to apply these skills in the actual environment of the climb. This training directly improves both safety and confidence on summit day.
Leaving Base Camp after breakfast, the route gains elevation steadily through rocky moraine before reaching the snow and ice terrain that leads to High Camp at approximately 5,500m. The trail becomes narrower and steeper as it approaches the camp, tucked onto a broad ledge with clear views of the headwall above and the Chhukung Valley below. Tents are pitched, a warm meal is prepared, equipment is rechecked, and the team rests carefully in preparation for the pre-dawn summit start.
Summit day begins at approximately midnight to 1:00am. Moving by headlamp through the quiet darkness, the team dresses carefully in full layers and begins the ascent toward the headwall. The lower section of the route crosses open snowfield and gentle glacier terrain before the headwall appears — a dramatic, steep face rising 300 metres above.
At the base of the headwall, the fixed ropes begin. A ladder section assists passage across the crevasse at the headwall's foot. From here, the team ascends the headwall using jumars and crampon technique — a sustained, physical effort that takes several hours and represents the main technical challenge of the entire climb. Above the headwall, the route joins the narrow summit ridge. The ridge is exposed and requires careful movement, but the angle eases and the summit of Island Peak at 6,189m is reached after a final short push.
The summit view is one of the most extraordinary available on any 6,000-metre peak in Nepal. Lhotse's immense south face rises immediately to the north, while Everest, Makalu, Ama Dablam, Baruntse, Cho Polu, and dozens of other peaks fill the horizon. After time on the top, the team descends carefully — rappelling and downclimbing the headwall using the fixed ropes — back to Base Camp for the night.
A built-in reserve day for weather flexibility. High-altitude conditions above the headwall can change rapidly, and this buffer ensures the team has the option to attempt the summit on this day if poor conditions prevented a safe ascent on Day 13. If the summit has already been reached, this becomes a comfortable rest and recovery day at Base Camp before the trek out begins.
With the summit behind them, the team begins the return trek. The trail retraces the ascent route through Chhukung and Dingboche before descending the Imja Valley back toward Namche Bazaar. The drop in altitude — over 1,700m from Base Camp — is immediate and welcome. Appetite returns, breathing eases, and the team arrives in Namche for a final night in the mountains.
An early start for the final trek to Lukla, following the Dudh Koshi River downstream through Phakding and familiar Sherpa villages. On arriving at Lukla, the team boards an early flight back to Kathmandu. The afternoon is free for rest or a final walk through the city. In the evening, a farewell dinner marks the successful conclusion of the expedition — a proper celebration of the summit, the journey, and the team.
A private transfer to the airport is arranged for your outbound flight. The Island Peak Expedition concludes — not just as a summit reached, but as the beginning of a relationship with high-altitude climbing that many of our clients describe as the most significant journey of their lives.
Why ACE?
Alpinist Climber Expeditions was built around a principle that has guided every climb we have organized — that the quality of the experience on a mountain is directly tied to the quality and depth of experience of the people leading it. What sets Alpinist Climber Expeditions apart is something that cannot be manufactured or replicated — it comes from decades spent on these mountains, from the culture that formed us, and from a deeply held belief that every climb deserves to be done properly.
We are a team of professional Sherpas. Not guides who have visited the Himalaya — guides who grew up here, who know these peaks in every season, and who have spent careers developing the technical skills and mountain judgment required to lead expeditions safely and successfully.
Our team holds IFMGA / UIAGM certification — the highest international standard in professional mountain guiding — alongside Advanced Mountaineering, Wilderness First Aid, Helicopter Rescue, and High-Altitude Rescue qualifications. Our lead guide has summited multiple 8,000-metre peaks, including ascents without supplemental oxygen. This is not a credential on paper. It is a lived capability that directly protects every climber who climbs with us.
We offer two expedition structures: a standard option with small-group expedition, and a premium option with 1:1 guide-to-client ratio. Both are built on the same standard of safety, preparation, and professionalism.The standard option maintains a minimum 1:3 guide-to-client ratio with a dedicated IFMGA lead guide and Sherpa support on every climb. Our premium 1:1 private option places you on the mountain directly alongside IFMGA Guide Mr. Prakash Sherpa.
We do not run high-volume operations as our clients are not bookings. They are climbers who have chosen to trust us with something significant and we take that trust seriously on every single expedition. We do not cut corners on acclimatization, staffing ratios, or safety equipment. We organize expeditions the way they should be organized — with patience, precision, and the kind of local knowledge that only comes from growing up in these mountains and spending a career on them.
The Team
Expedition Guides
Every guide on our team has been selected for their technical ability, high-altitude experience, and personal commitment to the safety and success of every climber they lead. All guides carry extensive experience at altitude and hold a proven record of safety, summit success, and strong compatibility with international clients.
The number of guides assigned to each expedition is determined by the size of the climbing team. Our standard guide-to-member ratio is 1:3, ensuring that every climber receives consistent, attentive support throughout the approach, the acclimatization phase, and the technical climb itself.
Climbing Sherpa Support
A dedicated team of experienced Climbing Sherpas supports every expedition with load carrying on the mountain, route preparation, and high camp management. On summit day, we maintain a 1:1 Sherpa-to-climber ratio — a commitment that reflects our belief that the summit push is where support matters most.
Our Climbing Sherpas are not simply load carriers. They are experienced high-altitude professionals who understand the mountain, the route, and the demands of summit day. Their presence alongside every climber on the final push is a core part of how we manage safety and success on the upper mountain.
What to Expect from Our Team
- Technically qualified, IFMGA-certified lead guidance on every expedition
- A standard guide-to-member ratio of 1:3 — adjusted based on team size and peak requirements
- 1:1 Climbing Sherpa support on summit day for every team member
- Guides who are experienced, companionable, and genuinely invested in your success
- Full medical kit, satellite communication, and emergency response capability carried by the team at all times
- A premium 1:1 private option available — summit alongside Mr. Prakash Sherpa directly
Trip Notes
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The best seasons for Island Peak are spring (March to May) and autumn (September to November). Spring offers stable weather, good snow conditions on the headwall, and the famous rhododendron blooms on the lower trail. Autumn provides clear skies and dry conditions after the monsoon. Winter climbing is possible but involves extreme cold and significant snowfall above Base Camp. The monsoon season is not suitable.
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The expedition runs for 17 days, including the trek approach through the Khumbu valley, the climbing phase, and the full return to Kathmandu.
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You will stay in comfortable guesthouses and lodges during the trekking approach and descent. At Base Camp, accommodation is in a single private dome tent. High Camp accommodation is in shared tents between members and guides.
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Group size is a minimum of 2 members with 1 IFMGA Mountain Guide, and a maximum of 6 members with 2 IFMGA Mountain Guides. The number of guides is always determined by the size of the team.
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Island Peak is rated Alpine Grade PD+ — just above moderate. The headwall is the technical crux and requires confident crampon and jumar technique on fixed ropes. A hands-on technical training session is conducted at Base Camp on Day 11 before the summit push. No prior technical climbing experience is required, but good physical fitness is essential.
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The summit day is long and demanding — typically starting at midnight to 1:00am from High Camp and returning to Base Camp by mid-afternoon. Proper rest, hydration, and nutrition in the days before are important.
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Note on elevation: Island Peak (Imja Tse) stands at 6,189m — the correct and currently recognised official elevation. Some older sources list it as 6,160m or 6,165m. Please use 6,189m as the accurate figure.
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A free duffel bag and baseball cap are provided to every member at the expedition team meeting in Kathmandu. The duffel bag will be used to carry your expedition supplies to Base Camp.
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You must bring your own daypack or backpack with a waterproof cover for daily use. Use it to carry personal essentials such as cash, important documents, your camera, a notebook, snacks, and a change of clothing.
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You can leave any luggage that is not needed on the expedition safely at your hotel in Kathmandu. There is no need to carry non-expedition items to Base Camp.
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Guesthouses along the trekking route may charge a small fee for charging electronic devices such as phones, cameras, and battery packs. Carry a power bank as a backup.
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Personal travel insurance with high-altitude rescue and medical evacuation coverage is mandatory and must be arranged before departure. Ensure your policy covers peaks above 6,189m.
Equipments
The equipment list below covers the personal gear essentials for a 17-day Island Peak expedition. All items should be sourced, properly fitted, and tested before departure. Do not bring equipment — particularly climbing boots and crampons — that you have not already used in the field. Ill-fitting or untested gear at altitude significantly increases both discomfort and safety risk.
Headwear
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Sun hat or lightweight cap
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Warm fleece or wool hat
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UV-protective sunglasses (category 4 recommended)
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Buff or thin balaclava / face mask
Handwear
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Lightweight fleece or wool inner gloves
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Gore-Tex outer mitten gloves
Clothing
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Gore-Tex waterproof jacket
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Gore-Tex waterproof trousers
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Hiking trousers
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Fleece jacket or warm mid-layer — slim enough to layer under Gore-Tex shell
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Moisture-wicking base layer top
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Thermal base layer trousers
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Down jacket with hood
Footwear
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Well broken-in trekking boots
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Double-insulated alpine climbing boots
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Crampons compatible with alpine boots
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Snow gaiters
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Trekking socks (4–5 pairs)
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Camp sandals or light slippers
Technical Climbing Equipment
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Ice axe
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Sit harness
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Locking carabiners and belay device
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Ascender (jumar) — essential for the headwall fixed rope section
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Climbing helmet
Camping & Trekking Essentials
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Sleeping bag rated to at least -20°C
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45-litre rucksack with rain cover
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Large duffel bag with padlock (for porter loads)
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Headlamp with spare batteries
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1-litre water bottles (x2)
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Thermos flask
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Trekking poles
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Personal first aid kit
Hygiene & Sun Protection
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Waterproof wash bag
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Medium towel
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Toiletries — soap, toothbrush, toothpaste
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Sunscreen SPF 50+ including lip balm with sun protection
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Hand sanitizer and handwash
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Toilet paper and wet wipes
Whats Included
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Permits & Documentation
Island Peak climbing royalty fees
Summit route fixing fees
Sagarmatha National Park entry permit
TIMS (Trekkers' Information Management System) card
Garbage disposal and environmental management fees
All government taxes, VAT, and official tourism service charges
Guiding & Support Staff
IFMGA-certified lead mountain guide — full wages and comprehensive insurance
Experienced Climbing Sherpa support — wages, summit bonus, full insurance, and equipment
Porters to carry trekking and expedition gear at a 1:1 member-to-porter ratio
All staff accommodation, wages, equipment, insurance, and medical provisions
Accommodation & Meals
4-star hotel accommodation in Kathmandu with daily breakfast, welcome dinner, and farewell dinner (2 nights)
Full-board lodge accommodation throughout the trekking approach and descent
High-altitude camp food for all members and guides during the climbing phase
Flights & Transport
Round-trip Kathmandu to Lukla mountain flight
Private vehicle airport pick-up and drop-off in Kathmandu
Camping Equipment
Single private dome tent at Base Camp with hot shower facility
High Camp tents shared between members and guides
Safety & Communication
Medical kit carried throughout the expedition
Satellite phone for emergency communication
Expedition Gifts
Alpinist Climber Expeditions branded duffel bag, cap, and T-shirt per member
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Island Peak climbing royalty fees
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Summit route fixing fees
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Sagarmatha National Park entry permit
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TIMS (Trekkers' Information Management System) card
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Garbage disposal and environmental management fees
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All government taxes, VAT, and official tourism service charges
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IFMGA-certified lead mountain guide — full wages and comprehensive insurance
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Experienced Climbing Sherpa support — wages, summit bonus, full insurance, and equipment
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Porters to carry trekking and expedition gear at a 1:1 member-to-porter ratio
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All staff accommodation, wages, equipment, insurance, and medical provisions
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4-star hotel accommodation in Kathmandu with daily breakfast, welcome dinner, and farewell dinner (2 nights)
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Full-board lodge accommodation throughout the trekking approach and descent
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High-altitude camp food for all members and guides during the climbing phase
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Round-trip Kathmandu to Lukla mountain flight
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Private vehicle airport pick-up and drop-off in Kathmandu
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Single private dome tent at Base Camp with hot shower facility
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High Camp tents shared between members and guides
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Medical kit carried throughout the expedition
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Satellite phone for emergency communication
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Alpinist Climber Expeditions branded duffel bag, cap, and T-shirt per member
Whats Not Included
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International airfare (to and from Kathmandu)
Nepal entry visa fees
Lunches and dinners in Kathmandu outside of the included welcome and farewell dinners
Alcoholic and soft beverages
Internet and WiFi access
Personal clothing and climbing equipment
Personal first aid kit
Drone permit fees (if applicable)
Personal travel, medical, and emergency rescue insurance
Gratuities for guides, Climbing Sherpa, Base Camp staff, and porters
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International airfare (to and from Kathmandu)
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Nepal entry visa fees
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Lunches and dinners in Kathmandu outside of the included welcome and farewell dinners
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Alcoholic and soft beverages
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Internet and WiFi access
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Personal clothing and climbing equipment
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Personal first aid kit
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Drone permit fees (if applicable)
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Personal travel, medical, and emergency rescue insurance
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Gratuities for guides, Climbing Sherpa, Base Camp staff, and porters
Our IFMGA certified guide - Prakash Sherpa oversees all our expeditions and operations, but you can also guarantee that he'll be your personal, 1:1 guide on the mountain.
FAQs
Flexible options are available to adjust the itinerary, services, and guiding support based on your needs.