Gasa

Gasa requires effort. There is a road — rough and subject to landslides and only passable in a 4WD — and there is the traditional route: two days on foot from Punakha, following the Mochu river north through subtropical forest that gives way to temperate oak and then to high-altitude pine as the valley narrows. I walked it. The first day was long and humid, the trail following the river closely enough that I could hear it continuously, and we camped in a clearing where fireflies came out after dark and the sound of the water was so close it became indistinguishable from sleep. The second day climbed more seriously, the forest opening at intervals to views of the valley behind and the mountains ahead — the high peaks of the Bhutanese Himalaya, white and genuinely massive, the kind of mountains that do not look like photographs of themselves.

Gasa Dzong sits on a rounded wooded hill above the town of Gasa, recently rebuilt after earthquake damage and painted freshly white against the dark surrounding forest. It is the administrative centre of the least populated district in Bhutan, governing a territory of yak pastures and glacial valleys that extends all the way to the Tibetan border. The population of Gasa district is roughly 3,000 people spread across an area larger than several European countries. The dzong feels appropriately serious about this responsibility — not grandiose, but well-maintained, staffed by monks who conduct their affairs with the self-possession of people whose nearest significant town is three days away.

The hot springs — Gasa Tshachu — are twenty minutes below the dzong, where a series of stone-walled pools have been built over natural thermal vents in the rock above the Mochu river. The water is iron-sulphur, staining the stones around the pools a deep rust orange, and it emerges from the ground at around 40 degrees. I went in the late afternoon, when the light was already starting to leave the lower valley, and the steam rising from the pools was visible against the dark pines across the river. Four other bathers were there — two older Bhutanese women, a young monk, and a man who appeared to be a government worker of some kind and who nodded at me with the democratic ease of someone in a hot spring. The monk was reading. The women were talking quietly without stopping for my entire time in the water.

The water cures things. This is not a metaphor — it is the stated purpose of the springs, and has been for centuries. Local lore attributes different pools to different ailments: skin conditions, joint pain, respiratory trouble. The monks at the dzong above recommend the springs to pilgrims in specific pools based on their symptoms. I have no ailment that required the springs but I stayed for two hours, until the cold outside the water was no longer something I could defer. When I climbed back to Gasa that evening, the path lit by a head torch and the river audible below in the darkness, my legs felt entirely different from how they had at the trailhead two days earlier.

Beyond Gasa, the Snowman Trek — one of the world’s most difficult high-altitude trails — continues north through Lunana toward the Tibetan border, crossing passes above 5,000 metres. Few complete it. The logistics require three weeks and specific acclimatization. But knowing it exists beyond those mountains — knowing that you are at the beginning of something rather than the end — changes the feeling of standing in Gasa in a way that is difficult to explain and very easy to feel.

When to go: March through May and October through December are the accessible windows — the summer monsoon from June to September makes the trail from Punakha dangerous from landslides and the river crossings unpredictable. The hot springs are open year-round, but the walk to reach them is not. October combines post-monsoon clarity with the autumn light that makes the Himalayan peaks visible from the dzong courtyard on clear mornings.