Which Nepal Treks Are Safe And Open After The August 2026 Flood?

Most of Nepal's famous treks are open and safe this autumn: Everest, Annapurna, Upper Mustang, Kanchenjunga and Makalu were not touched by the August 2026 flood, and Manaslu runs with a changed road approach. The exceptions are Langtang, Gosaikunda and Ruby Valley, where the access road, not the trail, took the damage.

What happened on 26 August 2026

On 26 August 2026 an ice-and-rock collapse near Langtang Lirung, north of the Rasuwa–Rasuwagadhi border crossing, triggered a flash flood that tore down the Bhote Koshi and Trishuli river corridors. World Expeditions reports about 19 motorable bridges and 40 km of road destroyed along that corridor, with risk continuing in Nuwakot, Dhading, Gorkha and Chitwan districts.

The human toll was severe, and reported figures differ widely by source and date: from at least 162 confirmed dead in early advisories to more than 1,450 in a later Nepal Police figure quoted by TravelNepal. Treat any single number with care and follow official updates.

The key point for trekkers is geography. The flood stayed inside the northern Trishuli and Bhote Koshi drainage. The Everest, Annapurna, Kanchenjunga and Makalu regions sit on entirely different river systems and were not physically hit.

Trek status at a glance (as of 2 October 2026)

Trek / region	Status	What to know
Everest Base Camp, Gokyo, Three Passes	Open	Dudh Koshi basin, far from the flood corridor; Lukla flights unaffected
Annapurna Circuit, ABC, Poon Hill	Open	Separate watershed; operating normally
Upper Mustang	Open	Unaffected; normal autumn schedule
Manaslu Circuit	Open with route changes	Trail not damaged; drive in via Benighat–Arughat, avoid the collapsed Malekhu–Dhadingbesi bridge route; one operator reports a later bridge washout near Namrung with temporary crossings, so verify
Kanchenjunga, Makalu	Open	Different mountain range and river systems
Langtang Valley	Access disrupted	Trail reportedly intact; the Syabrubesi road gateway was destroyed
Gosaikunda	Access disrupted	Lakes undamaged; shares the damaged Dhunche–Syabrubesi highway
Ruby Valley	Reported closed	Same flood corridor
Helambu, Tsum Valley	Confirm before booking	Sources I found did not give a clear status
Rasuwagadhi / Kerung overland to Tibet	Closed	Border route destroyed

Status changes quickly after a disaster. Use this table as a starting point and confirm with your operator 2–3 weeks before departure.

Everest region: Everest Base Camp, Gokyo and the Three Passes

The Everest region is safe and open. It drains through the Dudh Koshi river system in Solukhumbu, hundreds of kilometres from the Bhote Koshi and Trishuli corridor, and reports from Himalayan Society Treks and Best Heritage Tour agree that Lukla flights, trails and teahouses are running normally.

That covers all the classic routes: Everest Base Camp, Gokyo Lakes, Everest Three Passes, Island Peak and Everest View. Autumn (October to November) is the main season here, with the clearest skies and the most stable weather.

What to plan for: the flood did not change Everest's usual risks. Lukla flights can still be delayed by weather, so build one or two spare days into your itinerary. Acclimatise properly and keep to the standard rest days at Namche Bazaar and Dingboche. Because many trekkers have switched from Langtang to Everest this season, book flights and lodges early.

Annapurna, Manaslu, Langtang, Mustang and the rest

Annapurna: open

The Annapurna Circuit, Annapurna Base Camp, Poon Hill and the Manang and Mustang sections are listed as unaffected. They sit in a separate watershed from Rasuwa, so autumn 2026 treks can go ahead as planned.

Manaslu: open, with a different drive

The Manaslu trail follows the Budi Gandaki and has no confirmed flood damage, but the usual road approach was disrupted by a collapsed bridge. Operators now use the Benighat–Arughat road toward Machha Khola and Jagat, or the Galchhi–Kalleri route. One operator also reports a later flash flood near Namrung that damaged bridges, with temporary crossings in place. Expect a longer drive and ask your agency for the latest crossing status.

Langtang and Gosaikunda: wait or switch

The valley trail itself is reported to be intact, but the gateway was destroyed. The Dhunche–Syabrubesi road is damaged, and at least one operator says the Dhunche route is reserved for rescue and emergency traffic. Earlier "late September" reopening estimates were only estimates, and I could not find confirmation that trekker access has resumed. An alternative for some itineraries is the Sundarijal–Chisapani–Helambu side, suggested by Best Heritage Tour, but confirm its status first.

Upper Mustang, Kanchenjunga and Makalu: open

Upper Mustang is operating on its normal autumn schedule. Kanchenjunga and Makalu are in the far east and were not affected.

Tsum Valley, Helambu and Ruby Valley

These are the uncertain ones. Ruby Valley is reported closed, and I found no clear current status for Tsum Valley or Helambu. Ask a licensed operator for written confirmation before booking.

How to trek safely this autumn

Pick your trek by river system, not by headline. Anything outside the Trishuli and Bhote Koshi corridor was not hit, so the safest choice is a region on a different watershed.

1. Use a licensed, registered agency and ask for the route status in writing, including road access and bridges.
2. Reconfirm 2–3 weeks before departure. Road and bridge repairs change week to week, and automated travel apps lag behind.
3. Check with the Trekking Agencies' Association of Nepal (TAAN) and the Nepal Tourism Board for official notices.
4. Add buffer days for landslide delays on roads, flight delays at Lukla, and any detour drives.
5. Avoid the Trishuli and Bhote Koshi riverbanks and the damaged Rasuwa–Syabrubesi stretch, as authorities advise.
6. Buy travel insurance that covers trekking to your maximum altitude, helicopter evacuation and trip changes.
7. Carry TIMS and permits as required, and keep copies. Permit rules for restricted areas like Upper Mustang and Manaslu still apply.
8. Stay flexible. A rescheduled drive or a swapped region is a small cost compared with being stranded.

Frequently asked questions

Is Nepal safe to visit after the August 2026 flood? Yes for the large majority of the country. The damage was concentrated in Rasuwa, Nuwakot, Dhading and nearby districts; Kathmandu, Pokhara, Chitwan's tourist areas and the main trekking regions outside that corridor continue to operate.

Can I still trek to Everest Base Camp this autumn? Yes. The region was not affected and flights to Lukla are running.

Is the Annapurna Circuit open? Yes, along with Annapurna Base Camp, Poon Hill and Mustang.

Is Langtang open? Not reliably. The trail is reported intact but road access via Syabrubesi is damaged. Postpone or switch regions unless your operator confirms a safe route in writing.

Should I cancel my trip? Only if your route runs through Rasuwa. Otherwise, confirm status with your operator and go ahead.

Conclusion

The August 2026 flood was a devastating, localised disaster, and Nepal's trekking industry remains open. If you want certainty this autumn, choose Everest, Annapurna, Upper Mustang, Kanchenjunga or Makalu, and treat Manaslu as open with a longer drive. Save Langtang and Gosaikunda for when the road is rebuilt, and consider supporting affected communities when you travel.

Ready to plan? Contact a licensed local operator for a route-by-route status check and a flexible itinerary.