Mongar is not a minor detour from the standard Bhutan circuit — it is a genuinely separate undertaking. Eastern Bhutan is widely recognised, including by experienced regional guides, as suited to repeat visitors or travellers with at least two weeks available, precisely because reaching it requires real time: either an 8-hour drive from Bumthang across the 3,700-metre Thrumshingla Pass, or a multi-day overland journey from Samdrup Jongkhar near the Indian border in the far east. There is no quick way to add Mongar to a short Bhutan trip, and we won’t pretend otherwise.

What that distance buys you is a part of the country that operates differently from the well-developed western valleys. Eastern Bhutan has its own distinct languages — Khengkha in southwestern Mongar, Bumthangkha in the northwest, Chochangachakha along the Kuri Chhu valley in the north — its own architectural character, and a notably different lifestyle and pace from Thimphu or Paro. Mongar Dzong itself reflects this difference in an unusual way: unlike most of Bhutan’s great dzongs, which date to the 17th century or earlier, Mongar Dzong is a genuinely modern structure, built in the 20th century — a rare case of a Bhutanese dzong continuing a centuries-old architectural and spiritual tradition in recent memory rather than ancient history.

The Mongar Tshechu itself draws devotees from across the wider eastern region — as far as Trashigang and Lhuentse districts — making it as much a regional gathering point as a single-town celebration. The festival features mask dances distinctive to this part of the country, and concludes with the unfurling of the Guru Tshengye Thongdrol, the sacred tapestry depicting the eight manifestations of Guru Rinpoche.