Why trust this guide?
This article keeps the decision near the top, separates planning guidance from changing conditions and points you back to the complete internal library.
Browse the full Manaslu Circuit library →Combining Tsum Valley with the Manaslu Circuit normally creates an 18–22 day journey. The detour branches near the lower restricted corridor, visits Chumling, Chhekampar, Nile, Mu Gompa and Rachen Gompa, then rejoins the circuit before the long ascent to Larkya La.
Who should combine the routes?
Choose the combined trek when cultural time in Tsum matters as much as completing the circuit, and when the group has enough days to avoid compressing Samagaun and Samdo acclimatisation. Do not add Tsum by cutting the high-altitude safety days.
Route and map sequence
Follow the Budhi Gandaki to the Tsum junction, climb through Lokpa and Chumling to Chhekampar, continue toward Nile and Mu Gompa, visit Rachen Gompa on the return, then rejoin the main Manaslu line for Deng, Namrung, Samagaun, Samdo, Dharamsala, Larkya La and Bimthang.
18-day version
An 18-day plan is compressed and suits a strong, experienced group with favourable roads. It normally limits upper-Tsum exploration and leaves little spare time. Protect both Samagaun and Samdo acclimatisation days.
20-day version
Twenty days is the balanced choice: a measured Tsum out-and-back, two acclimatisation days before the pass and a separate return-road day. This is the recommended baseline for most first-time visitors combining the valleys.
22-day version
Use 22 days for slower cultural visits, Mu Gompa and Rachen Gompa time, road contingency and a protected Kathmandu buffer. It is also more suitable for mixed-pace groups and colder shoulder seasons.
Permits
The combined route needs the Manaslu RAP, the additional restricted permit covering Tsum Valley, MCAP, ACAP and the applicable agency-issued TIMS/guide arrangement. The agency must align entry dates and calculate each restricted permit separately.
Cost impact
Expect roughly six extra guide, porter, lodge and meal days, additional restricted-permit charges, and potentially higher transport or hotel costs when the itinerary is extended. The exact total depends on group size, permit duration, staff ratio and whether 18, 20 or 22 days are purchased.
Manaslu Circuit or Tsum Valley?
Choose the circuit for the high-pass crossing and complete east-to-west journey. Choose Tsum without the circuit for a quieter cultural valley and a return down the same corridor. Combine them only when the time and budget support both experiences without rushing.
Useful answers
Frequently asked questions
How many days does Tsum add?
Around six days is common, but a worthwhile extension can add more.
Does the Manaslu RAP cover Tsum?
Do not assume so; Tsum is an additional restricted area and requires separate permit coverage.
Is 18 days enough?
It can work, but 20–22 days provides better cultural and contingency time.
Sources and fact-checking
Rules, prices, access, weather and local procedures can change. Reconfirm current conditions before travel.
Keep planning internally
Ready for the next decision?
Move through the complete Manaslu Circuit library and keep the route, season and preparation details together.
Community discussion
Have a question about this guide?
Ask about the route, cost, timing or practical details and compare notes with other travellers. An approved account is required before you can post.
New accounts are reviewed by an administrator before discussion access is enabled.