- Fitness5–8 hours a day, 600–1,000 m of ascent and often as much descent; Ulleri 3,000 steps, Chhomrong–Sinuwa 400 m down and 400 up
- AltitudeOnly one or two nights above 3,500 m (MBC 3,700, ABC 4,130); headache common, serious altitude sickness rare – the five-day treks carry the highest risk
- AvalanchesDeurali–MBC in winter and spring; guides go early and not in fresh snow; fatal avalanche in January 2020
- Gear from the operatorSleeping bag and down jacket only with Outfitter and Base Camp Adventure; poles with CAN; duffel with five – the rest comes from Pokhara
- InsuranceTrekking to 4,500 m with helicopter rescue; named as mandatory by Outfitter, Himalayan Recreation, Nepal High
The path: stairs, stairs, and a gorge
The paths in the Annapurna region are paved village paths, and the villages lie on hillsides: that means stairs. To Ulleri it is over 3,000 steps in a row, from Chhomrong down to the Chhomrong Khola and up to Sinuwa another 400 m each way, and the way back from base camp to Bamboo has 1,800 m of descent in one day. If you have knee problems you need poles – CAN provides them, nobody else does. The gorge between Sinuwa and Deurali is the most beautiful part and the wettest: bamboo, moss, waterfalls, leeches in the monsoon. From Deurali it becomes open, stony and cold.
Daily stages are between five and seven hours; Ghandruk–Sinuwa on the seven-day treks is seven to eight. If you regularly walk six hours with 800 m of ascent at home and can do it again the next day, you have the fitness. The trek does not need strength, it needs knees.
Altitude: 4,130 m in two to three days from Chhomrong
From Chhomrong at 2,170 m to base camp at 4,130, most programmes take three days with nights in Bamboo or Dovan (2,300 to 2,600), Deurali (3,200) and then up top. That is a sensible pace: never more than 1,000 m of sleeping altitude gained per day, and only one night above 3,500. Headache and poor sleep in the Sanctuary are still normal; if you take them seriously, sleep at Machapuchare Base Camp at 3,700 and walk up in the morning. The five- and seven-day treks cut: Holiday Planner sleeps in Sinuwa, Deurali, ABC – from 2,340 to 4,130 in two days. That works for fit people who have never had altitude sickness; if you do not know, take a day more. No product names an oximeter except Base Camp Adventure; none mentions Diamox.
Altitude becomes dangerous when headache does not improve after a night or confusion, staggering, breathlessness at rest are added. Then it is down – to Deurali, to Dovan, two hours are often enough. The guides know this; you have to tell them.

