Puncak Jaya (Carstensz Pyramid) Indonesia, 4884m

Carstensz Pyramid, also known as Puncak Jaya is one of the famous 'Seven Summits' situated on the Indonesian island of Papua New Guinea. This peak is the only of the Seven which is a rock climbing peak and it requires a trek in through remote jungle to reach the base camp. The peak is in west Papua (now named Papua province Indonesia) and was called Irian Jaya until 2005. It lies in New Guinea, which is the world"s second largest island.

Relatively few people have climbed Carstensz due to a history of political instability in the area and the difficult of its location deep in dense jungle. Conditions are very diverse and often challenging, so be prepared to trek in the heat of the jungle, and climb in snow. The rock itself is good climbing rock but very sharp so bring a good pair of gloves. It can be climbed all year round and is a very exciting and dramatic expedition, definitely one of the most difficult of the Seven Summits despite it being the lowest. 

Getting to Puncak Jaya (Carstenz Pyramid)

Co-ordinates are S 04°04.733, E 137°09.572. The normal way to reach the mountain is a six day 67 km trek through the jungle from the village of Ilaga or Sugapa which is reached by a light aircraft from the town of Nabire. The height gain is 4000 metres during the trek and is quite strenuous requiring good balance on the fallen trees and along the trail which is heavily forested. Accommodation is in tents or in caves along the way, and it is common to experience tropical rain showers. Carstensz Pyramid stands out like a great fin of rock rising out of the jungle and its first sight has attracted many emotional reactions for climbers emerging from the dense undergrowth to be faced with such a dramatic sight.


It is the only one of the Seven Summits to involve technical rock climbing and therefore members should have suitable experience with ropework and abilities up to Severe. In particular are several notches on the summit ridge which involve a dramatic Tyrolean traverse.

Climbing route on Puncak Jaya (Carstensz Pyramid)

The normal route is the one that Heinrich Harrer opened up, which ascends a 600 metre wall; it's imposing and sheer with the bottom half being easily angled and the final top section very steep. The rock is clean and sharp but the wall itself rarely presents a problem. Initially the grade would be a VDiff (UIAA III) with the top at VS (UIAA V). There are fixed ropes in place below the ridge and along the jagged edge to the summit. The crux of the climb is an overhanging wall (VS, UIAA VI) that can be crossed using the fixed lines and jumars or by setting up a Tyrolean traverse.

The whole summit day is about 12 hours and involves scrambling on sharp rock in the dark up narrow chimneys and gullies until you reach the summit ridge. One would expect a range of weather including rain and mist and wind, possible snow showers or potentially clear skies with great views from the top. Temperatures on the summit are often well below freezing, and Base Camp can be 12 degrees Celsius. The descent involves rappelling or abseiling down the fixed lines. 

carstenz pyramid climbing route.jpg

History of Puncak Jaya (Carstensz Pyramid)

The word Carstensz is often mis-spelt but the peak is actually named after the first European to see the mountain whose name was Jan Karstens. He was a Dutch seafarer who in 1623 brought news back to Europe about a snow-covered mountain on the equator (actually 4 degrees South of it).  At the time he was not believed, a similar story to the first European to see Kilimanjaro. Nowadays the peak is also called Puncak Jaya which translates as Victory Peak and is popular name among Indonesian communists. 

It was Austrian climber Heinrich Harrer who in 1962 became the first mountaineer to climb Carstenz and his book about the climb and life in Papua called 'I Come From the Stone Age' was a best seller. His story and eventual fate was depicted in the movie 'Seven Years in Tibet' starring Brad Pitt. A few years later in 1971 Tyrolean mountaineer Reinhold Messner climbed Carstenz as part of his Seven Summits odyssey which he successfully completed in 1986. 

Geography of Puncak Jaya (Carstensz Pyramid)

It's geographical location is to the west of the central highlands and the Sudirman Mountains. Rather poetically, it belongs to the legendary Snow Mountains, so named because of the snowfall that commonly falls above 400 metres.  At 4884 metres it is the highest mountain in Australia and Oceania, collectively known as Australasia and, depending on your interpretation of a continent, it is one of the Seven Summits. The definition is still a point of debate because it depends on whether one considers a continent geographically or geologically. If New Guinea is regarded as part of the Australasian continental land mass then Carstenz is indeed the highest. Either way it is a significant expedition and far more challenging than Kosciusko.

Map for reaching Irian Jaya

Most people opt to fly into Jakarta with one of many international airlines, or else to Bali. From there the route to Timika or Nabire on West Papua is with Indonesian airlines Lion Air or Batik Air, normally via at least one stop enroute (for example Ambon). Bear in mind that it takes almost a full day to get to Papua from Jakarta. 

Bilogai Airport  Sugapa Airport    Google Maps.png
Flying into Jakarta or Bali for international arrivals and then an internal flight to Nabire airport. 

airport near Sugapa  Intan Jaya Regency  Papua  Indonesia   Google Maps.png
From Nabire - or sometimes Timika - there is a short flight to Sugapa airport which is the staging point for the start of the six day (70km) trek to the mountain itself. For helicopter trips, starting point is Timika. 

carstenz pyramid trek to base camp.jpg 
The trek to base camp takes five or six days and is initially through dense forest which is wet and muddy, before reaching the exposed rocky ground before the mountain. 

Here is American climber and blogger Alan Arnette crossing the traverse. The descent involves rappelling or abseiling down the fixed lines. 



Dates & Bookings

Bespoke Dates


Carstenz Pyramid itinerary

The itinerary is a guide only, it is necessary to allow extra days for flexibility in case of bad weather or local politics which might delay the departure. International flights should be into Jakarta or Bali, with onward flights booked to Nabire for the trekking trips and Timika for the helicopter trips.

From Nabire we will arrange the light aircraft into Sugapa where the trek begins. If bad weather or landslides cause problems at the airstrip there then other options include flying into Illaga for the trek to the mountain. We allow plenty of spare days for possible bureaucratic or weather delays on this trip. 

Trekking trip itinerary

Day Programme
1 Arrive Nabire from Jakarta
2 Day in Nabire
3 Fly to Sugapa by light aircraft
4 Day in Sugapa - planning, organising
5 - 9 Trek to Carstenz Pyramid 
10 - 12 Base Camp and summit days
13 - 15 Return trek to Sugapa
16 Sugapa to Nabire flight
17 -  21 Spare days and flight home

Helicopter trip itinerary


Carstensz Pyramid cost £11,500.00


  • All permits in Papua New Guinea
  • Accommodation at hotel, guest house based on twin share
  • Experienced mountain guides - UK  and Indonesian
  • Porters during trekking (1 Porters each clients Max 17 kg)
  • Food during the expedition
  • Fixed rope and group equipment (tents, dining tent, cooking utensils

 Note the price above does include a return flight from Nabire to Sugapa but this is to be paid locally on arrival. 


  • International flight to Nabire via Jakarta or Bali
  • Travel insurance covering cancellation and medical/evacuation
  • Excess baggage on flights
  • Personal climbing and camping equipment
  • Personal expenses 
  • Indonesia entry visa fee ($US25/Person)

Please note that the permits for this expedition are expensive and difficult to get, and we will require payment of this trip three months in advance in order to process the paperwork. Permits come from the main government offices in Jakarta, and regional administrative offices in Jayapura and local offices in Sugapa itself. The government does not give refunds for permits that are then not used for whatever reason so it is therefore important to have cancellation insurance in place. 


A deposit of £250 is required on booking to secure your place and we ask that the remaining balance (trip price minus the deposit) is paid in full 12 weeks prior to your departure. When you book with us you're given your own secure online account which you can access 24/7. Through this account you can edit your booking, add flight, health, insurance and dietary details and also make interim payments. We make payments as flexible as possible and you can choose, if you wish, to pay a bit off your trip fee whenever it suits you.



Kit List

Kit list for Carstensz Pyramid

The trekking route its hard and tough, trekking through cloudy-rain forest, hilly terrain, muddy trails, highland swamps, crossing rivers and walking around 7-8 hours a day. Clothing for the trekking part of the trip should be long sleeved and strong enough. If you are doing the helicopter trip straight into base camp then the jungle clothing is not necessary, but it can be cold and rainy and snowing so make sure you have warm clothing to change into immediately. 

The climbing section will likely be on cold terrain with rock and snow or ice, so warmth is important. The rock itself is quite sharp so working gloves which you don't mind being ripped will be important. Climbing gear will include a harness, helmet, slings, jumar and descender. 

Travel and trekking gear:

  • Passport and visa, money
  • Duffle bag which is waterproof and lockable
  • Trekking clothes for 6 days walk-in and 3 days walk out (shorts, trousers, quick dry Tshirts and tops)
  • Trainers, wellingtons, umbrella, poncho (assume wet and humid)

Climbing Gear:

  • Helmet
  • Climbing harness with belay loop and leg loops
  • Descender
  • Locking karabiners and several snap krabs
  • Jumar (ascender) with 'cows tail' 
  • Several slings and prussik loops

Clothing for the climbing section


  • Hiking boots, lightweight, ankle high
  • Gaiters
  • Several pairs climbing socks
  • Wellingtons or rubber boots for the muddy trails in the jungle

Body Layers:

  • Two pairs of climbing/trekking trousers
  • Base layers
  • Midweight fleece layers
  • Warm jacket with hood - can be synthetic down or heavy fleece
  • Waterproof shell layer - top and bottom

Headgear and Handwear:

  • Leather/climbing gloves
  • Lightweight inner gloves
  • Heavyweight warm gloves
  • Warm hat and buff
  • Sunhat
  • Sunglasses

Personal Gear:

  • Backpack of about 35 litres
  • Sleeping bag, rated down to 0 degrees Fahrenheit, in a waterproof compression sack
  • Sleeping mat, one inflatable and one closed cell
  • Sunblock
  • Headlamp with spare batteries
  • Couple of water bottles or bladders and water purification tablets
  • Anti-malarial tablets, insect repellant
  • Multitool
  • Pee bottle
  • Various waterproof stuff sacks
  • Plenty of garbage bags
  • Camera, book etc plus charging devices


We will supply tents, stoves, all the group food, ropes and fixed lines, and any gear for protection, a GPS, satellite phone and medical kit. 



Final payment due 12 weeks prior to departure on this expedition in order to pay for permits. 

Tours from only pp Dates & Bookings
Staff Review

We run this trip with a minimum of three members. Tailored dates for private groups are welcomed. 

Key Information
  • Duration 21 days
  • Challenge Strenuous
  • Altitude 4884m
  • Comfort Camping