The K2 Base Camp Trek from Skardu: The Days at Either End

The single most useful thing to understand before you book anything is that Skardu and Askole are not the same place and are not close together. Skardu is the town: the airport, the bank, the bazaar, the last usable mobile signal, the last hot water. Askole is the last village in the Braldu valley, a hard day's jeep drive away, and it is where the road simply stops and the walking starts. Everything administrative, logistical and physical that has to happen before you set foot on the Baltoro happens in Skardu, over a number of days most trekkers badly underestimate.

In practice that means your trip has two Skardu blocks, not one. There is a block on the way in — typically two to three nights while your operator finalises paperwork, buys food, hires staff and vehicles, and you sit at 2,230 metres letting your body catch up. And there is a block on the way out, which everybody plans as one night and which regularly becomes two or three, because the flight home is subject to exactly the same weather that stopped you flying in.

The trek pages that rank for this route treat those days as dead air. The most-read guide on the subject says outright that there is not a lot to see or do in Skardu before you start. We would put it differently. There is not a lot to sightsee, and there is a great deal to get right, and the people who get it right have a materially better trek than the people who spend four days pacing a hotel corridor in the bazaar.

Every operator tells you to spend at least two days acclimatising in Skardu before heading for Askole. Almost none of them tells you what to do with those days, and the difference between two days spent well and two days spent horizontal is real. The profile ahead of you is steep enough to respect: Skardu sits at about 2,230 metres at the airport, Askole at roughly 3,048, Urdukas around 4,130, Concordia somewhere between 4,600 and 4,700 depending on whose figure you take, and K2 Base Camp somewhere between about 5,000 and 5,150 — a spread that exists partly because base camp is a stretch of moving moraine on the Godwin-Austen glacier rather than a fixed point.

Day one should be nothing. You have probably flown from close to sea level and gained two kilometres of altitude in a little over an hour. Walk to the dunes at the end of the afternoon if you want air, drink far more water than feels reasonable, and go to bed early. That is the whole plan and it is the plan that works.

Day two is the one to use properly. A half-day out to the Kachura lakes stays low, moves your legs and costs you nothing in recovery. The Katpana cold desert at first light is ten minutes from us and is genuinely worth setting an alarm for. If you have a third day and the season is open, the Deosai plateau at roughly 4,000 metres is the only day trip out of Skardu that gains real altitude, and a day up there before Askole is the closest thing to a rehearsal that the valley offers. Two honest caveats: it is a long, rough day in a jeep that will leave you tired, and if you are already feeling the altitude in town it is exactly the wrong thing to do. Go up there to test yourself, not to fix yourself.

The symptoms to watch are the ordinary ones — headache, poor sleep, no appetite, nausea — and the rule is the same at 2,230 metres as it is at 5,000. If a headache is getting worse rather than better, go down and say so out loud to somebody. Nobody has ever regretted losing a day here. People have very much regretted carrying a problem up the Baltoro, where the nearest road is a week behind you.

Three airlines currently fly Islamabad to Skardu — PIA, Airblue, and AirSial, which began serving the route in May 2026 — on a hop of a little over an hour. The constraint is not the runway, which is long, and not the aircraft. It is that the valley approach is flown visually, because the terrain does not permit a precision instrument approach, so the flight needs the weather to cooperate in a way that most short-haul routes do not. Flights are cancelled here on days that look perfectly fine from Islamabad.

For a weekend visitor that is an inconvenience. For a K2 trek it is a structural risk, and it is the one thing the trekking guides consistently fail to connect. A twenty-one-day trip is built around a fixed sequence: hired staff, hired jeeps, a permit with dates on it, porters on regulated daily wages, and a return flight. Two days lost at the front end does not simply shift everything two days right. It eats the contingency you were relying on for a storm day at Urdukas, and it is the reason side objectives such as the Gondogoro La crossing get quietly dropped.

So build the buffer in deliberately, at both ends, and treat it as part of the trek rather than as slack. Come in a day earlier than your operator's itinerary requires — a spare acclimatisation day in Skardu is never wasted even when the flight behaves. And do not book an international connection out of Islamabad on the same day as your Skardu flight out. Coming off the Baltoro, that is the booking that ruins trips.

If it does go wrong, the fallback is the road, and it is a long one: roughly a day and a half to two days from Islamabad by the Karakoram Highway and the Jaglot–Skardu road, depending on where you break the journey. It is a genuine option, not a disaster, but it is not a decision to make at four in the morning at Islamabad airport with no plan.

Book your Skardu nights as two separate blocks with a three-week gap, and book the return block longer than you think you need. Trying to hold rooms across the whole period is expensive and pointless, and in July and August — which is both the trekking season and the domestic holiday season — the return block is the one that gets tight, because everyone comes off the mountain in the same fortnight.

What we can genuinely help with: rooms at either end, an early breakfast for a dawn departure, airport pick-up, a driver, drying space for wet gear, laundry, and an honest answer about what the roads and the flights are doing in the week you are travelling. What we cannot do: arrange your permit, hire your porters, supply a licensed guide, or tell you anything useful about conditions above Askole. That is your operator's job and it is not a job to give to a hotel. Choose a registered operator, get the fee schedule in writing, and ask them specifically what happens to your itinerary if the inbound flight is cancelled for two days.