Guide
Altitude & Acclimatization
Above 3,000 metres, the air has 30% less oxygen. Your body adapts, but it needs time. Here's how to prepare and what to expect.
What Is Acute Mountain Sickness (AMS)?
AMS is your body's reaction to lower oxygen at altitude. It affects everyone differently, fitness level doesn't protect you. The only prevention is slow ascent and proper acclimatization.
AMS Symptoms
Mild
Headache, nausea, fatigue, dizziness, poor sleep, loss of appetite
Moderate
Persistent headache, vomiting, severe fatigue, shortness of breath at rest
Severe
Confusion, inability to walk straight, fluid in lungs, bluish lips
How We Handle Altitude
Every Ettiq itinerary builds in acclimatization days. We follow the golden rule: above 3,000m, don't increase your sleeping altitude by more than 300-500m per day. Every third day is a rest day at the same altitude (climb high, sleep low). Our guides carry pulse oximeters, oxygen cylinders, and Diamox. They are trained to recognize AMS early and will descend you immediately if symptoms worsen.
Preparation (Before You Leave)
Hydrate
Start drinking 3-4 litres of water daily, 2 weeks before your trek. Dehydration mimics AMS symptoms.
Cardio
Your heart and lungs need to be efficient. Follow our /fitness guide, 4-8 weeks of cardio preparation pays off enormously.
Quit smoking
At a minimum, stop 2 weeks before the trek. Smoking reduces your blood's oxygen-carrying capacity.
Sleep
Arrive well-rested. Sleep deprivation weakens your body's ability to acclimatize.
Consult your doctor
If you have any pre-existing conditions (asthma, heart, blood pressure), get clearance. Ask about Diamox.
On the Trail
Walk slow
Even slower than you think. If you can talk while walking, you're at the right pace.
Drink constantly
2-3 litres of water minimum. Add electrolytes (ORS packets are cheap and effective).
Eat even if not hungry
Your body burns 3,000-4,000 calories a day at altitude. Loss of appetite is an AMS symptom, force yourself to eat.
Report symptoms early
Tell your guide about any headache or nausea. Don't wait. Early AMS is easily managed; severe AMS requires descent.
Avoid alcohol and sleeping pills
Both depress breathing and worsen AMS. Save the celebration for after the trek.
The Golden Rules
- If you feel unwell at altitude, assume it's AMS until proven otherwise.
- Never ascend with AMS symptoms. Rest until symptoms resolve.
- If symptoms worsen at rest, descend immediately, 300-500m is enough to make a dramatic difference.
- Never leave a person with AMS alone. Someone must accompany them during descent.