Day 1
Sundarijal to Chisapani
5 hrs10 kmsleep 2,140 m
Langtang · Easy
Helambu Trek itinerary, day by day
Every stage from Sundarijal to Melamchi Pul, with the walking hours, distance and sleeping altitude for each day.
Days
5
Highest sleep
3,640 m
Distance
40 km
Rest days
0
Altitude profile
Where you sleep each night
The single biggest safety factor on a high trek is how fast your sleeping altitude rises - not how high the route eventually goes.
Stages
The full schedule
Day 2
Chisapani to Kutumsang
6 hrs12 kmsleep 2,470 m
Day 3
Kutumsang to Tharepati
5 hrs9 kmsleep 3,640 m
Sleeping altitude rises 1,170 m on this night, above 3,000 m. That is more than the commonly cited 500 m guideline - worth a look if you have spare days to place.
Day 4
Tharepati to Tarkeghyang
5 hrs8 kmsleep 2,560 m
Day 5
Tarkeghyang to Melamchi Pul
5 hrs12 kmsleep 870 m
Helambu Trek itinerary questions
Answers computed from the published day-by-day data for this route.
How many days is the Helambu Trek?
5 days as published here, covering 40 km with 26 hours of walking in total.
What is the highest sleeping altitude on the Helambu Trek?
3,640 m. The highest point reached on the route is 3,640 m, which is not the same thing - what your body has to adapt to is where you sleep.
Which day of the Helambu Trek climbs the most?
Day 3, Kutumsang to Tharepati, gains 1,170 m of sleeping altitude.
Does the Helambu Trek itinerary allow enough time to acclimatise?
There is 1 night above 3,000 m where sleeping altitude rises by more than 500 m, which is more than the commonly cited guideline. That does not make the itinerary wrong, but those are the nights to look at first if you are adding spare days.
Test a different schedule
Add rest days and see how the sleeping-altitude profile changes before you commit to a booking.
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