Every June, Nepal's trekking calendar quietly shuts down. The Everest and Annapurna trails turn to mud, leeches come out, and Lukla flights get unreliable. Most guidebooks tell you to wait until autumn. But there's one region in Nepal where monsoon season is actually the smart time to go, and if you're reading this during the summer months, you're sitting right in the middle of its best window of the year. That region is Upper Mustang, and 2026 happens to be the best year yet to visit it, thanks to a major permit reform that landed in March.
