Trekking to K2 Base Camp is the closest most walkers will ever get to the “Throne Room of the Mountain Gods”: the great amphitheatre at Concordia where K2 (8,611 m), Broad Peak, Gasherbrum IV and a ring of other giants crowd the horizon. The approach runs up the Baltoro Glacier, one of the longest non-polar glaciers on Earth, past the granite spires of the Trango Towers and the long wall of Masherbrum. It is not a teahouse trek. There are no lodges, no villages and no resupply beyond what your team carries — everything runs on an expedition model with guides, porters and full camps, which is part of what makes standing at the foot of K2 feel earned.
Getting there
The gateway is Skardu in Gilgit-Baltistan. Most international trekkers fly from Islamabad to Skardu, but the flight is famously weather-dependent and cancellations are common — build buffer days at both ends of the trip. The overland alternative is the Karakoram Highway, a spectacular 16–18 hour road journey with an overnight stop roughly halfway. From Skardu a rough jeep track climbs to Askole (about 3,000 m), the last village and the start of the trek, with Jhula Camp now often used as the first camp.
The route
The classic itinerary runs 12–14 trekking days, with the full trip usually 18–22 days including travel, rest days and buffers. From Askole the stages run roughly: Askole to Jhula (about 20 km, 6–7 hours), Jhula to Paiju (about 21 km, 6–7 hours), a rest and acclimatisation day at Paiju, then Paiju to Khoburtse, on to Urdukas, Goro II, and finally Concordia at about 4,600 m. The day trek from Concordia to K2 Base Camp (about 5,150 m) is a long one — roughly 20–22 km return over 8–10 hours — passing the Art Gilkey Memorial, the quiet cairn where climbers lost on K2 are remembered. Many groups return the same way; stronger parties can exit over the Gondogoro La (5,585 m) into the Hushe Valley, a dramatic but demanding pass crossing that needs fixed ropes, crampons and an ice axe, and is generally best from mid-June to August.
Best season
The season is short: June to September, with July and August the most reliable months. Early in the window there is more snow on the glacier and the Gondogoro La; September brings clearer air and fewer trekkers but colder nights and a higher chance of early storms. Winter is out of the question for trekking parties.
Permits and rules
This is a restricted region and independent trekking is not permitted: you must travel with a government-licensed guide booked through a registered Pakistani tour operator. Budget roughly USD 300 per person for the Central Karakoram National Park (CKNP) permit plus about USD 200 for the Gilgit-Baltistan adventure fee — operators normally bundle these into the package price, so confirm what is included. Foreign trekkers generally need the appropriate trekking or mountaineering visa rather than a standard tourist visa, so check the current rules well before booking. Travel insurance is effectively mandatory and must cover high-altitude trekking rescue up to 6,000 m including helicopter evacuation; read the altitude clause of any policy before you pay.
Costs
International group departures for the 2026 season are generally listed between about USD 1,990 and USD 2,685 per person, with the full market range roughly USD 1,790 to USD 3,900+ depending on group size, services and how much private logistics you want; premium private expeditions can exceed USD 4,500. The price normally covers permits, the licensed guide, porters, all food on the trek, camping and cooking equipment, and Skardu logistics. International flights to Pakistan and personal gear are extra.
Practical tips
Acclimatisation is the whole game: the itinerary’s rest day at Paiju exists for a reason, and a slow steady pace beats heroic long days. Nights are cold even in summer — bring a sleeping bag rated to around minus 20 degC. There is no phone signal on the glacier, so carry a satellite messenger and make sure someone at home has your itinerary. Diamox is widely discussed among trekkers but should only be used under medical supervision. Finally, treat the Skardu flights as the trip’s biggest uncertainty: keep your schedule flexible at both ends and you will enjoy the Karakoram far more.
Arjun Mehta is the pen name behind Mountains Bliss — practical mountain-travel guides with routes, costs, seasons and safety notes, researched from real trekker discussions and cross-checked before publishing. No sponsored posts, ever.
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