Acclimatization If the trekking is above 9,000 ft, then one should keep in mind that acclimatization of the body due to rarefied atmosphere and shortage of oxygen is essential. One should not attempt to move fast unless the body has adjusted to the high altitude conditions. It may take one to two days for the body metabolism to fully adjust to the new atmospheric pressures and less oxygen.

Looking over a mountain ridge towards Kalatop. Credit: Debangsu Sengupta