Island Peak
Island Peak (6,189m) — Imja Tse, the Khumbu's classic training summit, ringed by Lhotse, Nuptse, and Ama Dablam.
Expedition Overview
What is the Island Peak Expedition?
Island Peak, known locally as Imja Tse, stands at 6,189 metres and is one of the most iconic trekking peaks in the Everest region. Named by the 1953 British Everest expedition for its appearance as an island rising from a sea of glacial ice when viewed from Dingboche, the peak sits at the head of the Imja Valley in the Chhukung Valley, encircled by Lhotse, Nuptse, Baruntse, and Ama Dablam. It was used as a training climb by Edmund Hillary and Tenzing Norgay ahead of their 1953 Everest ascent, and remains one of the world's most popular preparation peaks today.
AltiPro's Island Peak Expedition follows the classic Everest Base Camp trail through Namche Bazaar, Tengboche, and Dingboche before branching into the Chhukung Valley to Island Peak Base Camp (Pareshaya Gyab) at approximately 5,100m. Summit day is a single, sustained 10–14 hour push involving glacier travel, crevasse crossings, and a final fixed-rope headwall onto the summit ridge, where climbers stand at 6,189m with Lhotse's south face rising 2,300m above them. The expedition spans 17 days from Kathmandu to return.
Island Peak is rated Moderate. Graded PD+ on the Alpine scale, it sits between Mera Peak and Lobuche East in overall technicality, more demanding than Mera Peak's snow slopes, but without the sustained steep ice pitch that makes Lobuche East the harder of the two. AltiPro recommends prior trekking experience above 4,500m; no previous technical climbing is required, as jumar and crampon technique are taught at Base Camp.
About Island Peak — Imja Tse, the Khumbu's Classic Training Summit
Island Peak rises at the head of the Imja Valley, a side valley of the Chhukung Valley in the Khumbu region, directly beneath the towering south face of Lhotse. The approach follows the same trail used for the Everest Base Camp trek as far as Dingboche, before branching east into Chhukung, making it easy to combine with an EBC itinerary, much like a Lobuche East to EBC trip.
The peak was officially renamed Imja Tse by the Nepalese government in 1983, though “Island Peak” remains the name most climbers use internationally. Its first ascent was in 1956, three years after Hillary and Tenzing used its slopes to train ahead of their historic Everest summit, a legacy that has made it the default training peak for climbers preparing for Ama Dablam, Manaslu, or Everest itself.
Island Peak Base Camp sits beside the Imja glacial lake, and the summit ridge delivers dramatic views of Lhotse, Nuptse, Baruntse, and Ama Dablam, though Everest itself, just 10km to the north, is hidden behind Lhotse's enormous south wall.
Why Choose AltiPro Adventures for Island Peak?
The Classic First 6,000m Training Peak
Island Peak is the standard proving ground before Ama Dablam, Manaslu, or Everest. AltiPro's Sherpa guides teach jumar ascent, crampon technique, and glacier travel at Base Camp, skills climbers carry directly into bigger objectives.
Combine with Everest Base Camp
Because the approach shares the Everest Base Camp trail, Island Peak is easy to combine into a single trip. AltiPro regularly arranges the climb alongside a full EBC and Island Peak itinerary, or as part of a wider Mera, Island, and Lobuche East multi-peak expedition.
A Genuine High-Altitude Summit Day
Summit day is a sustained 10–14 hour push across glacier terrain, crevasse crossings, and a fixed-rope headwall to the ridge, a real test of endurance and technical composure. AltiPro's 1:1 Sherpa ratio above Base Camp keeps ropes, anchors, and pacing managed by experienced climbing Sherpas throughout.
Full Sherpa Support and Equipment
All technical summit equipment is provided by AltiPro: crampons, harness, jumar, ice axe, helmet, and rope, along with cook staff at Base Camp. Climbers do not need to own or bring technical climbing gear.
Medical Support
A full medical kit at Base Camp, with satellite communication for emergency coordination. The well-established Khumbu helicopter evacuation network provides rapid access to Lukla or Kathmandu if required.
Spring and Autumn Options
AltiPro operates Island Peak in both spring (March–May) and autumn (September–November), the two stable weather windows for the Chhukung Valley and summit ridge.
The North Ridge Route (6,189 m)
The standard route on Island Peak follows the classic Khumbu approach before turning into the Chhukung Valley for the glacier and summit ridge push, one of the most reliably logistics-supported high-altitude routes in Nepal.
Kathmandu to Namche Bazaar via Lukla (1,400m to 3,440m)
Flight from Kathmandu to Lukla, then trek through Phakding to Namche Bazaar, the Sherpa capital of the Khumbu, with a rest day for acclimatisation.
Namche to Dingboche via Tengboche (3,440m to 4,410m)
The trail climbs through Tengboche monastery and the Imja Valley to Dingboche, with a second acclimatisation day before continuing to higher altitude.
Dingboche to Chhukung and Island Peak Base Camp (4,410m to 5,100m)
The route branches east from the main Everest Base Camp trail through Chhukung village, then continues over moraine to Island Peak Base Camp (Pareshaya Gyab) beside the Imja glacial lake, where climbing gear is checked and jumar and crampon training take place.
Base Camp to High Camp (5,100m to 5,600m)
Many climbers move to a High Camp on the glacier moraine to shorten the long summit day, though a strong direct push from Base Camp is also common on Island Peak.
Summit Push (5,600m to 6,189m)
Summit day begins in the early hours, crossing crevassed glacier terrain to the base of the final headwall. A fixed-rope ascent of roughly 100m leads onto the narrow summit ridge, where climbers reach 6,189m beneath the towering south face of Lhotse. The descent retraces the same route, making for a long and physically demanding round trip.
How Difficult is the Island Peak Expedition?
Island Peak is graded PD+ on the Alpine system, harder than Mera Peak's straightforward snow slopes, but without the sustained steep ice pitch that makes Lobuche East the more technical of the Khumbu's trekking peaks. The main challenges are the long, high-altitude summit day, glacier crevasse crossings, and the final fixed-rope headwall onto the ridge.
Best Season for the Island Peak Expedition
Spring (March–May): Stable pre-monsoon conditions with clear ridge views. This is peak season on the Everest Base Camp trail, so expect busier teahouses along the approach.
Autumn (September–November): Crisp post-monsoon conditions with excellent visibility on the summit ridge. October and November are considered the ideal months for the Island Peak summit. AltiPro operates both seasons, contact for current dates.
Island Peak Expedition Cost
Full-service Island Peak expedition — Lukla flights, Everest Base Camp trail approach, all technical summit equipment, and full Sherpa support included.
Includes NMA trekking peak permit, Lukla domestic flights, Sagarmatha National Park entry, full Sherpa support to summit, all technical equipment for summit day (crampons, harness, jumar, rope, ice axe, helmet), Base Camp cook service, and a complete medical kit. International flights and personal trekking equipment are not included. Contact AltiPro for a complete Island Peak climbing cost breakdown.
Island Peak Expedition — Frequently Asked Questions
Common questions about climbing Island Peak (Imja Tse) with AltiPro Adventures.
How difficult is Island Peak?
Island Peak is graded PD+ and considered moderate, harder than Mera Peak but generally less technical than Lobuche East. The main challenges are the long summit day, glacier crevasse crossings, and a fixed-rope headwall onto the summit ridge.
What is the Island Peak climbing cost?
AltiPro's full-service package includes permits, Lukla flights, Sherpa support, all technical summit equipment, and Base Camp services. Contact AltiPro for a current, detailed cost breakdown.
Can Island Peak be combined with the Everest Base Camp trek?
Yes. Since the approach follows the same trail as far as Dingboche, Island Peak is one of the most popular combinations in the Khumbu. AltiPro offers this as a dedicated EBC and Island Peak itinerary, and can also combine the climb with Lobuche East or a wider Mera, Island, and Lobuche East multi-peak expedition.
What technical skills are needed to climb Island Peak?
No prior technical climbing experience is required. Basic jumar (ascender) technique, crampon use, and comfort with exposure are taught by AltiPro's Sherpa guides at Base Camp before the summit push. Prior high-altitude trekking experience is strongly recommended.
How long is the Island Peak expedition?
17 days from Kathmandu to return, including the Lukla flight, the Everest Base Camp trail approach through Namche and Dingboche, and the summit attempt on Island Peak (6,189m).
Is Island Peak or Lobuche East a better first climb?
Both are excellent introductions to Himalayan mountaineering, but Lobuche East is generally the more technical of the two, with a steeper, more sustained ice headwall near the summit. Island Peak offers a longer, more physically demanding summit day with less sustained steep climbing, making it the more common first choice for climbers new to high-altitude mountaineering.
What permits are required to climb Island Peak?
A Nepal Mountaineering Association (NMA) trekking peak permit (Group B) plus Sagarmatha National Park entry and TIMS fees for the Khumbu approach. AltiPro manages all permit applications from Kathmandu.
Detailed Itinerary
Click on each day to view details
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| 1 | Arrival in Kathmandu | Dinner | Hotel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Arrive at Kathmandu Tribhuvan International Airport. Transfer to hotel, welcome dinner, and Island Peak Expedition briefing.
2
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Kathmandu – Permit Processing & Expedition Briefing |
Breakfast / Dinner |
Hotel |
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Process NMA climbing permit and Sagarmatha National Park entry, gear check, and expedition briefing.
3
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Fly Kathmandu → Lukla (2,840m) – Trek to Phakding (2,610m) |
Breakfast / Lunch / Dinner |
Lodge |
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35-minute mountain flight to Lukla. Meet the climbing team and trek down the Dudh Koshi valley to Phakding.
4
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Trek Phakding → Namche Bazaar (3,440m) |
Breakfast / Lunch / Dinner |
Lodge |
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Cross the Dudh Koshi on suspension bridges and climb steadily into Sagarmatha National Park to the Sherpa capital, Namche Bazaar.
5
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Acclimatization Day at Namche Bazaar (3,440m) |
Breakfast / Lunch / Dinner |
Lodge |
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Rest day with an acclimatization hike to Everest View Hotel (3,880m) for first views of Everest, Lhotse, and Ama Dablam.
6
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Trek Namche → Tengboche (3,860m) |
Breakfast / Lunch / Dinner |
Lodge |
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Follow the Everest Base Camp trail through rhododendron forest to Tengboche, home to the Khumbu's largest monastery.
7
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Trek Tengboche → Dingboche (4,410m) |
Breakfast / Lunch / Dinner |
Lodge |
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Descend through Deboche and climb the Imja Valley to Dingboche, entering drier, high-altitude terrain.
8
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Acclimatization Day at Dingboche (4,410m) |
Breakfast / Lunch / Dinner |
Lodge |
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Rest day with an acclimatization hike toward Nangkartshang Hill (5,083m) for panoramic views of Makalu and Ama Dablam.
9
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Trek Dingboche → Chhukung (4,730m) |
Breakfast / Lunch / Dinner |
Lodge |
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Branch east from the main Everest Base Camp trail through the Imja Valley to Chhukung, the last permanent settlement before Island Peak.
10
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Acclimatization Day at Chhukung (4,730m) |
Breakfast / Lunch / Dinner |
Lodge |
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Rest day with an optional acclimatization hike to Chhukung Ri (5,550m) for close views of Lhotse, Nuptse, and Ama Dablam.
11
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Trek Chhukung → Island Peak Base Camp (5,100m) |
Breakfast / Lunch / Dinner |
Lodge/Tent |
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Cross moraine and glacial terrain to AltiPro's established camp at Island Peak Base Camp (Pareshaya Gyab). Climbing Sherpa route briefing, gear issue, and jumar and crampon training.
12
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Summit Day – Island Peak (6,189m) |
Breakfast / Lunch / Dinner |
Lodge |
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Pre-dawn departure from Base Camp. Cross crevassed glacier terrain and ascend the fixed-rope headwall to the summit ridge, reaching Island Peak at 6,189m, then descend to Chhukung.
13
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Trek Chhukung → Dingboche (4,410m) |
Breakfast / Lunch / Dinner |
Lodge |
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Descend back through the Imja Valley to Dingboche. Post-summit rest and celebration.
14
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Trek Dingboche → Namche Bazaar (3,440m) |
Breakfast / Lunch / Dinner |
Lodge |
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Retrace the trail through Pangboche and Tengboche, descending to Namche Bazaar.
15
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Trek Namche Bazaar → Lukla (2,840m) |
Breakfast / Lunch / Dinner |
Lodge |
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Final descent day, following the Dudh Koshi valley back to Lukla.
16
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Fly Lukla → Kathmandu |
Breakfast / Dinner |
Hotel |
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Fly from Lukla to Kathmandu. Transfer to hotel, farewell dinner, and Island Peak climbing certificate presented.
17
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Final Departure from Kathmandu |
Breakfast |
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Transfer to Kathmandu Tribhuvan International Airport for international departure.
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