Nepal's restricted northern district, separated from Tibet by a permit checkpoint. Cave monasteries, a medieval walled city and an arid plateau few travellers reach.
Mustang
The restricted area permit for Upper Mustang is non-negotiable. A licensed guide used to be. In 2026, the regulations have shifted and the ground rules are different from what most trekking agencies will tell you.
Mustang
Upper Mustang requires a restricted area permit that costs USD 500 for 10 days - one of the most expensive trekking permits in the world. What the restriction is for, where the fee goes, and what you actually get.