Acclimatization

The Spiti Marathon unfolds at elevations between 11,000 and 15,000 feet, where thinner air and rugged terrain demand proper preparation. Allowing your body to adapt is key to both performance and safety.

Preparing your body is the first step to a successful run. With the right acclimatization, you’ll be ready to take on Spiti with confidence and strength.

Arrival & Adjustment

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For Kunzum La Challenge, we recommend an acclimatisation period of 10 days, while for all other race categories, 7–8 days is recommended.
If possible, ascend gradually with stops at lower-altitude towns like Reckong Peo or Tabo
Take it easy during your first 24–48 hours—rest is crucial
Stay well hydrated (around 3–4 litres daily)

Group of marathon runners posing with Surya Spiti Marathon 2024 banner and event dates August 28-30, 2026.

Choose light, energy-rich meals
Avoid alcohol and smoking
Get adequate sleep (8+ hours)
Keep your body active with light movement like short walks and stretching

Watch for AMS (Acute Mountain Sickness)

Headaches
Nausea or vomiting
Dizziness
Trouble sleeping
Loss of appetite

If symptoms continue or intensify, seek medical help and consider moving to a lower altitude.

Essential Items to Bring along

Diamox (only after consulting a doctor)
ORS or electrolyte supplements
Pulse oximeter (optional)
Layered clothing for changing conditions
Sunscreen and lip balm

Important

Spiti Valley is 3,800+ metres above sea level — acclimatization is essential
Arrive at least 3–4 days before your race day
Avoid strenuous activity on your first day at altitude
Stay well-hydrated and follow a carb-rich diet during acclimatization
Watch for symptoms of Acute Mountain Sickness (AMS): headache, nausea, dizziness

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