When a trek goes wrong — rescue and evacuation in Nepal

Whatever has happened, the sequence is the same. Get the person out of immediate danger — off the trail edge, out of the wind, insulated from the ground, which matters enormously in cold. Then make one decision: can this person walk down?

If yes, start walking down. Descent solves altitude illness, improves almost everything else, and moves you towards help. Do not wait for morning if the problem is altitude — people die overnight waiting for daylight.

If no, you are arranging an evacuation, and everything after this is logistics. Send someone to the nearest lodge to raise the alarm rather than everyone staying put.

Your guide is first — this is the core of their job, they have agency contacts and they know the local network. If you are without a guide, the lodge owner is your equivalent, and they are usually extremely capable.

Nepal has a large private helicopter industry, and in good weather a machine can reach most of the popular trekking corridors quickly. That is a genuine advantage over almost anywhere else in the Himalaya.

The constraints are weather and altitude. Helicopters fly visually in the mountains, so cloud stops them regardless of urgency — which is why a morning evacuation is far more likely to happen than an afternoon one, and why you should raise the alarm early rather than sleeping on it. At extreme altitude, load capacity drops to the point where a helicopter can lift only one person at a time.

Cost is high — commonly several thousand US dollars — and operators generally require a payment guarantee before flying. This is precisely what your insurer's emergency line exists to provide.

Nepal has a documented history of helicopter rescue fraud: schemes in which unnecessary evacuations were arranged, sometimes with inflated or duplicated billing, to extract money from travel insurers. Government investigations have addressed it and the industry has cleaned up considerably, but the incentive structure has not vanished.

This does not mean refusing an evacuation you need. It means keeping the medical decision separate from the commercial one.

Thorong La (5,416 m) and Larke La (5,106 m) close with snow, and the 2014 Annapurna disaster — in which dozens of trekkers and guides died in an unseasonal blizzard on Thorong La — is the reason this is treated seriously.

The rule is simple and non-negotiable: do not cross a high pass in bad weather or with fresh snow on it, whatever the itinerary says. Passes are crossed at dawn because afternoon weather is worse; if the dawn is wrong, you wait. Waiting a day at Thorong Phedi or Dharamsala costs a day. The alternative has killed people.

Trust the local judgement over your schedule. Lodge owners and guides in these villages watch that pass every day of their lives.

This is the most common way an Everest trek goes wrong, and it is not an emergency — it is a planning problem that becomes an emergency only when someone has an international flight the next morning.

Lukla flights are cancelled routinely by cloud, wind and visibility, sometimes for several consecutive days. There is no way to guarantee a flight out.

It happens on Nepali treks, and knowing the outline reduces the chaos. Notify the police and your embassy immediately, and the trekking agency, which will handle the local process.

Nepal requires official documentation before a body can be repatriated, and the process runs through the police, a hospital in Kathmandu and the embassy. It takes time and money — repatriation insurance is the specific cover that pays for it, and it is worth checking you have it.

For a trekking companion's family at home, the embassy is the correct channel for notification, not social media. Let them do it.