Altitude sickness (Acute Mountain Sickness or AMS) is the most serious health risk on Kashmir high-altitude treks. It affects trekkers of all fitness levels — there is no relationship between physical fitness and altitude sensitivity. This guide gives you the knowledge to recognise, prevent, and respond to altitude sickness before it becomes a medical emergency.
What Causes Altitude Sickness?
At altitude, atmospheric oxygen pressure decreases. Above 2,500m, your body must work harder to extract oxygen from each breath. Most Kashmir treks reach 3,500–4,400m — well within the range where AMS can develop.
Altitude sickness is not caused by lack of fitness. It’s caused by ascending too fast for your body to acclimatise. A fit runner can get AMS just as easily as a casual walker.
Altitude Thresholds on Our Kashmir Treks
- Tulian Lake Trek: Maximum 3,700m — mild AMS risk, manageable
- Gurez Valley Trek: Maximum 4,100m — moderate AMS risk
- Kashmir Great Lakes Trek: Maximum 4,200m (Gadsar Pass) — moderate-to-high risk
- Warwan Valley Trek: Maximum 4,400m — highest risk, most demanding acclimatisation
AMS Symptoms: The Three Stages
Mild AMS (Act Now, Don’t Ascend)
- Headache (the cardinal symptom — take seriously even if mild)
- Fatigue and general weakness
- Loss of appetite
- Nausea
- Dizziness on standing
- Disturbed sleep
Response: Stop ascending. Rest at the same altitude. Hydrate aggressively (3–4L water per day). Take ibuprofen or paracetamol for headache. Take Diamox if prescribed. Reassess after 12–24 hours.
Moderate AMS (Descend If No Improvement)
- Severe, persistent headache (doesn’t respond to medication)
- Vomiting
- Extreme fatigue — difficulty walking straight
- Shortness of breath at rest
Response: Descend 500m minimum immediately. Symptoms typically resolve rapidly with descent. Do not wait overnight if moderate symptoms persist.
Severe AMS / HACE / HAPE (Emergency — Descend Immediately)
- HACE (High Altitude Cerebral Edema): confusion, loss of coordination, inability to walk in a straight line, extreme lethargy
- HAPE (High Altitude Pulmonary Edema): breathlessness at rest, frothy or pink sputum, persistent cough
Response: This is a life-threatening emergency. Descend immediately — even at night. Administer supplemental oxygen if available. Administer dexamethasone (HACE) or nifedipine (HAPE) if available and trained. Evacuate to hospital.
All Travel My Kashmir guides carry emergency medications and oxygen canisters on high-altitude routes.
Prevention: The “Climb High, Sleep Low” Rule
The golden rule of altitude acclimatisation: ascend gradually, sleep lower than your highest point of the day. Our itineraries are designed around this principle:
- We never gain more than 600m of camp altitude per day above 3,000m
- We include rest days at key altitude bands (e.g., day 2 at 3,500m on the Great Lakes)
- We take high points of the day as excursion only, returning to sleep lower
Diamox (Acetazolamide): Should You Take It?
Diamox is a prescription medication that speeds acclimatisation by stimulating faster breathing. It is not a replacement for proper acclimatisation — it is a supplement.
Recommended dosage: 125mg twice daily, starting 1–2 days before significant altitude gain. Continue for the first 2 days above 3,500m.
Side effects: Frequent urination, tingling in hands and feet, metallic taste, increased sensitivity to sunlight. Most side effects are mild.
Contraindications: Sulfa drug allergy. Consult your doctor before departure — this is essential.
Hydration: Your Most Important Tool
Dehydration at altitude dramatically worsens AMS symptoms. Drink 3–4 litres of water per day on trail. Signs of adequate hydration: light-coloured urine. Dark yellow or amber urine means you’re dehydrated.
All water on trail should be filtered or treated. We provide water purification tablets or filtered water at all our camps.
Our Emergency Protocol
Every Travel My Kashmir trek includes:
- First aid-certified guides on all high-altitude routes
- Pulse oximeters at every camp to monitor blood oxygen saturation
- Emergency oxygen canisters (on treks above 3,800m)
- Emergency dexamethasone and nifedipine on guide-carry medical kits
- Satellite communication device for emergency contact where mobile signal is absent
- Pre-agreed evacuation protocols and emergency contacts for every trek
Acclimatisation Schedule: What We Recommend Before Your Trek
If arriving from sea level (Mumbai, Chennai, Bangalore):
- Day 1–2: Arrive Srinagar (1,600m). Rest. Explore the city slowly.
- Day 2–3: Day trip to Gulmarg (2,690m) or Pahalgam (2,130m). Return to sleep in Srinagar.
- Day 4: Begin trek from base (most start at 2,200–2,500m)
FAQ
Can I get altitude sickness at 3,000m?
Yes. Some people experience mild AMS symptoms as low as 2,500m, particularly if they’ve ascended rapidly from sea level. Symptoms are usually mild at this elevation and resolve with rest and hydration.
How do I know if I’m altitude-sensitive?
There’s no reliable test in advance. Previous altitude experience is the best predictor — if you’ve been to 3,000m+ before without symptoms, you’re less likely to be severely affected. But sensitivity can change between trips.
Is altitude sickness more common at certain times of year?
No — season doesn’t affect altitude sickness risk. What matters is ascent rate and individual physiology, not the time of year.