Above 3,500 metres, your body has to work harder for every breath. The single biggest predictor of whether you summit Mount Kenya is not your fitness — it is how well you acclimatize. After 200-plus summits, here is the strategy we use on every trip.
1. Climb high, sleep low
The golden rule of altitude. Each day you climb higher than you sleep. On the Sirimon route, for example, you hike up toward Kami Hut (4,200m) on your acclimatization day but return to sleep at Shipton's Camp (4,200m). This triggers your body to produce more red blood cells without over-stressing it overnight.
2. Add an acclimatization day
A 4-day Sirimon trek has a roughly 75% summit success rate. Add one acclimatization day and it jumps to over 90%. That extra day is the cheapest insurance you can buy on a mountain.
3. Drink 4–5 litres of water a day
Dehydration mimics and worsens altitude symptoms. Drink constantly, even when you do not feel thirsty. Add electrolytes to at least one bottle.
4. Walk slowly — pole pole
Your guide will set a pace that feels too slow. It is not. Going slowly keeps your heart rate low and lets your body adapt. Racing up the mountain is the fastest way to get sick.
5. Know when to descend
A mild headache is normal. A severe headache, vomiting, loss of coordination or breathlessness at rest are not. Our guides do daily health checks and will not hesitate to descend if symptoms worsen. The mountain will always be there.
Want a route with acclimatization built in?
Our 4-day Sirimon and 5-day Chogoria packages both include a dedicated acclimatization day. [See Mount Kenya packages](/mount-kenya) or [message us on WhatsApp](https://wa.me/254792667796) to plan your climb.
