What makes Thorong La Pass so challenging during the Annapurna Circuit Trek?

Trip Overview

Thorong La Pass is challenging, as it is the highest section of the trek, and the weather can sometimes give you trouble. More than strength, endurance matters. At 5,416 meters (17,769 feet), the air is very thin, so every step takes more effort and breathing becomes harder.

The ascent needs to start early in the morning, often in freezing temperatures, when the ground can be icy and the wind strong. Also, there are no shelters or places to rest along the way, so you must keep going for hours without a break.

The combination of steep, steady ascent, cold conditions, and low oxygen makes it physically and mentally demanding.

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