On the morning of August 26, 2026, a catastrophic flash flood tore down the Bhotekoshi River on the Nepal–Tibet border, entering Nepal through Rasuwa district before merging with the Trishuli River system downstream. It is one of the deadliest natural disasters in Nepal's recent history, with the death toll now well over 1,000 and thousands of people still unaccounted for across Rasuwa, Nuwakot, Dhading, Gorkha, Chitwan, and the Nawalparasi districts. Our thoughts are with everyone affected, and with the rescue and relief teams still working around the clock.
Because this tragedy struck the Langtang region — one of Nepal's most visited trekking areas — we've received an understandable wave of questions from trekkers with upcoming trips: is it safe to travel to Nepal at all right now? Below is a clear, honest breakdown of what's actually affected and what isn't, so you can make an informed decision rather than relying on headlines alone.
What Happened, Briefly
A mass of ice, rock, and debris broke loose on the Tibetan side of the border and swept down the Bhotekoshi gorge with almost no warning, devastating the settlements of Syabrubesi and Timure before the surge joined the Trishuli River and caused damage as far downstream as Chitwan. Several hydropower stations along the river were destroyed, the Pasang Lhamu Highway connecting Kathmandu to Rasuwa was cut in sections, and the Rasuwagadhi–Kerung border crossing into Tibet — a key overland gateway for both trade and Kailash pilgrims — sustained major structural damage with no confirmed reopening date.
Trekking Routes Currently Affected
The damage is concentrated in a single geographic corridor. If your trek passes through any of the following, treat it as suspended until your operator confirms otherwise:
- Langtang Valley Trek — the standard access route through Syabrubesi runs directly through the flood-hit corridor.
- Tamang Heritage Trail — several of its overnight stops (Gatlang, Timure, Briddim) sit inside or adjacent to the affected zone.
- Gosaikunda / Langtang–Gosaikunda combined routes — access via Dhunche and Syabrubesi is disrupted.
- Kathmandu–Kerung (Rasuwagadhi) overland route to Mount Kailash — the border crossing itself is destroyed, with no timeline for reopening this season.
If you're booked on any of these, don't assume you need to cancel outright — talk to your operator first, as some routing alternatives are being assessed (see below).
Trekking Routes That Are Normal and Open
This is the point worth repeating clearly: the flood affected one specific river corridor in Rasuwa district — it did not affect the rest of Nepal's trekking geography. The following regions are operating on their normal schedules, with no route disruption reported:
- Everest / Khumbu region — Lukla flights, the classic Everest Base Camp trek, Gokyo, and the Three Passes route are all running normally.
- Annapurna region — Annapurna Base Camp, the Annapurna Circuit, Poon Hill, and Mardi Himal are unaffected.
- Manaslu Circuit — operating normally.
- Kanchenjunga region — operating normally.
- Makalu Base Camp — operating normally.
- Upper Mustang, Dolpo, and the mid-western trekking regions — unaffected.
Kathmandu itself, including Tribhuvan International Airport, was not in the flood's path. All domestic and international flights are operating on schedule, and the city is functioning normally for arrivals, hotel stays, and trek departures to every region outside the Langtang corridor.
What We're Telling Our Own Clients
- If your trek is in Everest, Annapurna, Manaslu, Kanchenjunga, or Makalu: no changes are needed. Proceed as planned.
- If your trek is in the Langtang region: hold off on independent travel to Syabrubesi. We're monitoring road and trail conditions daily and will only recommend proceeding once bridges, teahouses, and access roads have been inspected and confirmed safe by local authorities.
- If you're travelling toward Kailash via the Rasuwagadhi land route: assume it's unavailable for this season. We can talk through the Kathmandu–Lhasa flight alternative if that's part of your plan.
- If you're simply unsure: reach out to us directly with your itinerary before making any cancellation or rebooking decisions. Conditions in the affected corridor are changing day to day, and we'd rather give you a current answer than have you rely on older articles or maps.
A Note on Responsible Travel Right Now
Nepal's tourism economy depends heavily on trekking, and continuing to travel to the unaffected regions is genuinely one of the most direct ways visitors can support the country through this. It does not take resources away from the recovery effort — the regions above are geographically and logistically separate from Rasuwa. If you'd like to contribute directly to relief efforts, we're happy to point you toward verified local organizations working on the ground.
Frequently Asked Questions
Do I need to cancel my Nepal trek because of the flood? Only if your itinerary specifically routes through Rasuwa district or Syabrubesi. Everest, Annapurna, Manaslu, Kanchenjunga, and Makalu treks are unaffected.
Is Kathmandu safe to fly into right now? Yes. Kathmandu and Tribhuvan International Airport were not in the flood's path, and all flights are operating normally.
When will the Langtang region reopen for trekking? There's no confirmed timeline yet. Bridges, trails, and teahouse infrastructure near Syabrubesi need inspection and, in places, rebuilding before the route can be considered safe again. We'll update this page as official confirmation comes in.
Is the Everest Base Camp trek affected? No. The Everest/Khumbu region is geographically separate from the flood zone and is operating normally.
Where can I get official updates? Check with the Nepal Tourism Board, Nepal's National Disaster Risk Reduction and Management Authority (NDRRMA), or your registered trekking operator for the latest ground confirmation rather than relying on international news alone, since conditions are changing daily.
This advisory reflects the situation as of early September 2026 and will be updated as road and trail access to the Langtang region is restored. For a live check on your specific itinerary, contact the Himalaya Heart team directly.
