The short version: three of the most asked questions, answered in a line each. The rest of the page goes into detail.
- How should I handle altitude when climbing Gokyo Ri? Gokyo Ri is about 5,350 m, so go slowly and arrive acclimatised after at least two nights in the Gokyo area.
- Which symptoms mean I should descend from Gokyo? A worsening headache, repeated vomiting, confusion, unsteady walking or breathlessness at rest mean you should go down at once and tell your guide.
- What are the main hazards on a Cho Oyu climb? The main hazards are altitude illness, frostbite, avalanche and crevasses, along with cold, wind and a very long summit day.
How should I handle altitude when climbing Gokyo Ri?
Gokyo Ri is about 5,350 m, so go slowly and arrive acclimatised after at least two nights in the Gokyo area. Start before dawn for the light, dress warmly, and drink regularly. If you feel unwell, turn around, because the view is not worth a worsening headache.
Which symptoms mean I should descend from Gokyo?
A worsening headache, repeated vomiting, confusion, unsteady walking or breathlessness at rest mean you should go down at once and tell your guide. Mild headaches and poor sleep can settle with rest at the same altitude, but they should never be ignored.
What are the main hazards on a Cho Oyu climb?
The main hazards are altitude illness, frostbite, avalanche and crevasses, along with cold, wind and a very long summit day. A good team plans carefully and turns back when conditions are poor. Even on the standard route this is a serious high-altitude climb.
Why do Cho Oyu teams climb up and come back down several times?
This is the acclimatisation rotation. Teams climb to a camp and return to base camp several times before a summit attempt, which prepares the body for the final push. Rushing it is dangerous, so choose a schedule that leaves room for rest and weather.
Do I need supplementary oxygen on Cho Oyu?
Most climbers use supplementary oxygen on summit day and have Sherpa support. Some climb without it, but that is for very experienced mountaineers. Ask your operator whether oxygen is included and what the plan is if you or a teammate struggles.
Is it safe to walk beyond the fifth lake or toward the Nangpa La?
Beyond the lakes, ask your guide which side trips are safe, because conditions near the glacier and icefall are demanding. The Nangpa La is on an international border and is closed to trekkers. Always follow your guide on routes close to it.
What insurance do I need for a Cho Oyu trip?
Choose a policy that covers climbing to 8,000 m and evacuation if you plan to climb. For the Gokyo trek, make sure it covers trekking above 5,000 m and helicopter evacuation. Read the exclusions carefully and confirm cover with the insurer before you book.
