Trip tools

Altitude checker

Choose a trek or high tour to see where you sleep each night and how fast the itinerary climbs. Nights that rise more than 500 m above 3,000 m are flagged.

Trek or tour

Jomsom, Kagbeni and Marpha Tour, 4 Nights

3,710 m

Where you sleepHigh point of the daySleeping altitude rises more than 500 m above 3,000 m

No big jumps. Sleeping altitude never rises more than 500 m a night above 3,000 m on this itinerary.

Night-by-night sleeping altitude
Day	Overnight	Sleep	Change	High point	Note
1	Jomsom	2,720 m	–	2,830 m	OK
2	Kagbeni	2,810 m	+90 m	3,710 m	OK
3	Marpha	2,670 m	-140 m	2,810 m	OK
4	Jomsom	2,720 m	+50 m		OK
5		822 m	-1,898 m	2,720 m

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Altitude sickness basics

Acute mountain sickness (AMS) can start above about 2,500 m, whatever your age or fitness.

Know the symptoms

Headache, with loss of appetite or nausea
Unusual tiredness or weakness, dizziness
Poor sleep

Climb slowly

Above 3,000 m, raise your sleeping altitude by no more than about 500 m a night
Take a rest day every three to four days, or for every 1,000 m gained
Climb high, sleep low: a short walk up in the afternoon, then sleep lower
Drink water, eat well and skip alcohol for the first days up high

Go down if it gets worse

Never go higher with symptoms; rest at the same height until they pass
If symptoms worsen, descend at once, even at night
Confusion, stumbling, breathlessness at rest or a wet cough are emergencies: descend and get medical help

General information, not medical advice. See a doctor before a high trip, especially with a heart or lung condition, and ask about acetazolamide. Check that your insurance covers helicopter rescue to the altitude you will reach.

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