Sometimes the best journeys start from your doorstep

Walk out of your hotel in Kathmandu and head north toward the towering peaks of Langtang.

Visit sacred landscapes, traverse Langtang Valley, acclimatize with a climb up Tserko Ri (4,995m/16,387ft).

Cross rarely visited Kanja Pass (5,130m/16,830ft).

Walk back down ‘the stick’ to your room in Kathmandu.

Above Gosaikund Lake
Emma Lee (Australia) having fun approaching the sacred lakes

Yes, your quads will hurt

Minimum Distances: 186k/115mi, Total Ascent: 14,198m/46,581ft, Max Elevation: 5,130m/16,830ft Kanja Pass.


Success does not come easily

The Langtang Fastpack 2023 Chronicle

2018 Trip Report | 2019 Trip Report

2017 Trip Report by HAL |  Trip Report by Trail Running Nepal

2016 Scouting Trip Report by HAL | Trip Report By Seth Wolpin

Join the Langtang folklore

Dates: October 7 – 21, 2023

Participation limited to 8 members.

Participants must have prior high altitude experience and comfort with exposure.

Cost:$1,999. All inclusive, including $250 deposit through your UltraSignup registration (the rest due within 30 days). Register here on UltraSignup!


Briefing and Orientation starting at noon.

Day 1 Kathmandu (1,398m) to Gul Banjang (2,398m)

Day 2 Gul Banjang (2,398m) to Magengoth (3,350m)

Day 3 Acclimatization Day. Magengoth (3,350m)

Day 4 Magengoth (3,350m) to Phedi (3,630m)

Day 5 Phedi (3,630m), over the Larabina Pass (4,610m) past the sacred lakes to Chandarbari (3,300m)

Day 6 Chandarbari (3,300m) to Gumnachowk (2,770m)

Day 7 Gumnachowk (2,770m) to Kyangjin Gompa (3,850m)

Day 8: Acclimatization Day (3,850m)

Day 9 Kyangjin Gompa (3,850m) Kyangjin over Kanja Pass (5,140) to Tengyling

Day 10 Tengyling (2,550m) to Therapati (3,690m)

Day 11 Therapati (3,690m) to Chisopani (2,150m)

Day 12 Chisopani ( 2,150m) to Kathmandu (1,400M)

Day 13 Buffer Day

Departure Day

Langtang Reflections

Our Langtang Fastback far exceeded my expectations. It was extremely challenging, beautiful and provided the experience to visit an area in Nepal that is working so hard to rebuild. Personally, I have to thank Seth for his willingness to help me reach my goal ... without him I most certainly would not have been able to. Both he and Sudeep are so knowledgeable and patient ... I never worried about my safety. Thank you for providing the adventure of a lifetime!!!

Linda Quirk USA Langtang Fast Pack 2017 May 7, 2017

The Langtang Fast Pack was a fantastic trip on beautiful trails through Nepal's Langtang region. This was my second trip with Himalayan Adventure Labs and I could not recommend them more highly! I have a million beautiful memories and pictures from each trip, which has only increased my desire to return to Nepal in the future.

Stephanie Gundel Seattle, USA Lantang Fast Pack, 2017 May 12, 2017

It's completely different from the Annapurna Circuit! I loved the remoteness of the route!...I felt like we definitely got to experience the back country of Nepal and the HAL summer house reinforces that experience....I absolutely love the format HAL uses for their trips! You guys have been able to blend making a guided trip truly feel like an adventure without it becoming a tour group.....My wife and I have now completed two trips (Annapurna Circuit and Langtang) with HAL and I truly think they have something special when it comes to guiding/leading trips. While you "think you signed up for a guided trip in Nepal," what you've really done is signed up to part of a team for the next 10-14 days. I wouldn't go to the Himalaya's with anyone else, nor do I want to!

Jason Pardue Langtang Lollipop 2018 June 22, 2018

Seth and Sudeep are amazing leaders and friends. The trips are well organized and expectations set pretty accurately. Definitely the trips to take if you are looking for self supported, with beautiful trails off the beaten path, and want to push yourself. This was our second trip with HAL and we look forward to another!

Heather Pardue Langtang Lollipop 2018 June 22, 2018

Definitely six stars on five! Professional guides who became friends. The perfect balance between safety, adventure and liberty, and the best way to discover Nepal. I'll be back for sure!

David Bombardier Langtang Fastpack 2023 November 30, 2023