Collect the Upper Mustang Restricted Area Permit in Kathmandu (Department/agency); this is mandatory and usually processed same day if you arrive early — permits must be arranged before entering Mustang.
Short domestic flight to Pokhara to connect onward to Jomsom the next morning; flights depart throughout the day but morning flights give more buffer for Jomsom connections.
Very early start to reach Pokhara Domestic Terminal; most departure flights to Jomsom are in the early morning (6:00–8:00am), so eat something light and pack essentials.
Explore small gompas and large stone mani walls in village centers — good cultural introduction to Mustang Tibetan-Buddhist life; most gompas open 9:00–17:00.
Explore the royal palace and Jampa (Maitreya) monastery inside the walled town; palace and gompas are typically open 9:00–17:00 (hours can vary seasonally).
Short excursions to nearby caves at Chhoser (human bone caves) or small hilltop gompas for panoramic views; some sites are open daylight hours — hire a local guide for context.