Should I do the Chomolhari Trek or the Chomolhari-Laya-Gasa Trek?

If you have 9 days, the Chomolhari Trek. If you have 14 days and want the cross-Himalayan experience with the Layap community and the Gasa hot-spring close, the Chomolhari-Laya-Gasa Trek. The latter requires substantially more altitude time (eight passes above 4,000m vs three) but rewards with a cultural and geographic register the shorter route doesn't reach.

How is the Chomolhari-Laya-Gasa different from the Snowman?

The Chomolhari-Laya-Gasa is 14 days and traverses to Gasa via Laya; the Snowman is 25 days and continues north into Lunana with eleven passes above 4,500m. The two routes share the first 9-10 days. The Chomolhari-Laya-Gasa is widely held to be the best cross-Himalayan experience accessible to non-expedition trekkers; the Snowman is an expedition product.

What happens at Gasa Tsachu?

The Gasa Tsachu is the principal Bhutanese hot springs — four pools at different temperatures (38-48°C), each with distinct mineral composition. Most itineraries include a 1-2 night stay at the tsachu post-trek for menchu hydrotherapy soaking. The recovery tradition that the tsachu provides is, in our view, the natural conclusion to the trek. The Royal Gasa Lodge sits at the road-head above the pools.

Will I see Chomolhari?

Yes — Jangothang base camp (Day 3 onwards) provides the principal direct view of Chomolhari (7,326 m). The trek then turns away from the mountain into the Layap valleys, so the Chomolhari views are concentrated in the first six days.

Camp throughout — expedition-grade insulated tent camps at each stage. The Laya nights (Days 10-11) can be supplemented with a traditional Layap village house stay if the community is hosting; this is arranged through the trek leader and is not guaranteed. The final Gasa Tsachu stay is at the Royal Gasa Lodge (a Royal Government-supported simple lodge at the road-head).

Layap women in conical yak-hair hats in the high pasture above Laya village

The cross-Himalayan trek

Laya Lingshi Trek — thirteen days from Paro to Gasa via Chomolhari base camp, Lingshi village, and the Layap community.

The Laya Lingshi Trek (also known as the Chomolhari-Laya-Gasa Trek) extends the Chomolhari route north through the Lingshi high country into the Layap yak-herding community, and exits via the Gasa hot springs — thirteen trekking days from Shana in the upper Paro valley (a 1-hour drive from Drukgyel Dzong on the now-motorable road) to the Gasa Tsachu hot springs. The principal Chomolhari base-camp views, the high-pasture country of Lingshi, the cultural encounter with the Layap, and the menchu hydrotherapy soak at the trek's natural conclusion.

Duration: 13 days
Max altitude: 5,005 m
Difficulty: strenuous
Trailhead: Shana, upper Paro valley (2,870 m) — driven to from Drukgyel Dzong on the now-motorable road, approximately 1 hour
Trail end: Gasa Tsachu / Gasa road-head (2,200 m)
Distance: 199 km
Best months: April · May · September · October

Plan a journey around this trek

The route, in brief

The trek begins at Shana in the upper Paro valley (driven from Drukgyel Dzong on the motorable road, approximately 1 hour), shares the first four days with the [[chomolhari-trek|Chomolhari Trek]] (Jangothang base camp, Nyile La, Lingshi), then continues north-east into the Layap valleys via Chebisa, Robluthang, and the Sinche La pass (5,005m). Two to three days in the Layap community at 3,800 metres give the trek's principal cultural. The descent route via Gasa Tsachu closes the trek with the country's principal hot-spring soak. Thirteen trekking days total; the Sinche La pass is the principal altitude challenge.

The Layap community

Laya village sits at 3,800 metres — one of the highest permanently-inhabited settlements in Bhutan and the principal cultural-encounter point of the trek. The **Layap** are a distinct semi-nomadic yak-herding community with their own language, dress, and folkloric tradition; the Layap women's conical yak-hair hats (decorated with silver and turquoise) are one of the most-photographed cultural images of the Bhutanese highlands. The community continues to live on the yak-and-barley economy that has sustained the Lunana-Laya valleys for centuries; the 21st-century cash economy has touched the village but the traditional pattern remains intact. The trek's 1-2 nights at Laya give the visitor a experience of the community — village house visits, the lhakhang, traditional song and dance in the evening.

The Gasa Tsachu close

The trek ends at the Gasa road-head, a 30-minute walk above the [[gasa-tsachu|Gasa Tsachu]] hot springs. Most itineraries include a 1-2 night stay at the tsachu post-trek — the menchu hydrotherapy register that Bhutanese pilgrims have used for centuries to recover from the long-distance trekking and pilgrimage journeys. The sequence — fourteen days on foot, then the slow soak in mineral pools at body temperature, the post-trek meal at the lodge, the long sleep — closes the trek with a register the Western trekking tradition rarely matches.

Day-by-day itinerary

Day 1
3,610 m
22 km
~8 h
Shana to Thangthangkha
Driven from Drukgyel Dzong to Shana on the motorable road (~1 hour). Climb to alpine meadow at Thangthangkha — the first camp.
Day 2
4,080 m
19 km
~6 h
Thangthangkha to Jangothang
Reach Chomolhari base camp.
Day 3
4,080 m
6 km
~4 h
Jangothang — acclimatisation day
Tsophu lakes; Chomolhari ridge.
Day 4
4,890 m
18 km
~8 h
Jangothang to Lingshi via Nyile La
Nyile La (4,890m); descend to Lingshi.
Day 5
3,990 m
12 km
~5 h
Lingshi to Chebisa
Traverse to Chebisa; notable waterfall above the camp.
Day 6
4,440 m
17 km
~7 h
Chebisa to Shomuthang via Gobu La
Gobu La (4,440m); descent to Shomuthang.
Day 7
4,750 m
18 km
~8 h
Shomuthang to Robluthang via Jare La
Jare La (4,750m); descend to Robluthang.
Day 8
5,005 m
19 km
~8 h
Robluthang to Limithang via Sinche La
Sinche La (5,005m); descend to Limithang.
Day 9
3,800 m
10 km
~5 h
Limithang to Laya
Long descent into the Layap community; village welcome.
Day 10
3,800 m
Laya — rest day
Village exploration, lhakhang visit, traditional Layap meal and dance.
Day 11
3,050 m
19 km
~7 h
Laya to Koina
Descend the Mo Chhu through old-growth rhododendron forest.
Day 12
2,770 m
18 km
~7 h
Koina to Gasa
Final descent to Gasa village; the dzong and the road-head.
Day 13
2,200 m
4 km
~2 h
Gasa to Gasa Tsachu
Short walk down to the tsachu pools. Begin the menchu hydrotherapy soak.

The day-by-day is illustrative. Acclimatisation profile, rest days, and exact camp locations are tailored to the specific traveller and party.

Visiting

Season
Two windows. April-May catches the spring rhododendron bloom in the Mo Chhu descent and clear pre-monsoon mountain views. September-October catches the autumn clear-sky window with the most-reliable Chomolhari visibility and the Layap community at their post-harvest. June-August is monsoon; November-March the Sinche La pass is snow-affected.
Fitness
Strenuous — the Sinche La pass at 5,005m is the principal altitude challenge and the trek's eight passes above 4,000m carry a substantial cumulative load. Prior multi-day trekking experience above 4,000m is recommended. The Day-4 acclimatisation rest at Jangothang and the Day-11 rest at Laya are essential to the altitude profile.
Layap cultural protocol
The Layap community welcomes visitors with substantial warmth, particularly during the October post-harvest window. Modest dress (shoulders and knees covered) is the local norm; small gifts (Indian rupees, simple toys for children, fruit) are appreciated. Photography of village life is welcomed if asked; the principal photographic tradition is the women's conical hats and the dzong-style village house architecture.
Combine with the Royal Highlander Festival
The Layap community is the principal host of the [[royal-highlander-festival|Royal Highlander Festival]] on 23-24 October each year. Trekkers who time the trek to arrive at Laya around 23 October catch the festival as a substantial cultural addition; the trek's two Laya nights become four with the festival window. Demand is high in this configuration; book 12+ months in advance.

Frequently asked

Should I do the Chomolhari Trek or the Chomolhari-Laya-Gasa Trek?: If you have 9 days, the Chomolhari Trek. If you have 14 days and want the cross-Himalayan experience with the Layap community and the Gasa hot-spring close, the Chomolhari-Laya-Gasa Trek. The latter requires substantially more altitude time (eight passes above 4,000m vs three) but rewards with a cultural and geographic register the shorter route doesn't reach.
How is the Chomolhari-Laya-Gasa different from the Snowman?: The Chomolhari-Laya-Gasa is 14 days and traverses to Gasa via Laya; the Snowman is 25 days and continues north into Lunana with eleven passes above 4,500m. The two routes share the first 9-10 days. The Chomolhari-Laya-Gasa is widely held to be the best cross-Himalayan experience accessible to non-expedition trekkers; the Snowman is an expedition product.
What happens at Gasa Tsachu?: The Gasa Tsachu is the principal Bhutanese hot springs — four pools at different temperatures (38-48°C), each with distinct mineral composition. Most itineraries include a 1-2 night stay at the tsachu post-trek for menchu hydrotherapy soaking. The recovery tradition that the tsachu provides is, in our view, the natural conclusion to the trek. The Royal Gasa Lodge sits at the road-head above the pools.
Will I see Chomolhari?: Yes — Jangothang base camp (Day 3 onwards) provides the principal direct view of Chomolhari (7,326 m). The trek then turns away from the mountain into the Layap valleys, so the Chomolhari views are concentrated in the first six days.
Where do I sleep?: Camp throughout — expedition-grade insulated tent camps at each stage. The Laya nights (Days 10-11) can be supplemented with a traditional Layap village house stay if the community is hosting; this is arranged through the trek leader and is not guaranteed. The final Gasa Tsachu stay is at the Royal Gasa Lodge (a Royal Government-supported simple lodge at the road-head).

Journeys around this trek

/journeys/bhutan-chomolhari-trek-autumn

Festivals nearby

/festivals/royal-highlander-festival

Monuments on the route

/monuments/drukgyel-dzong

Begin when you're ready.

Five questions. A bespoke draft back within a day or two.

Plan a journey around this trek

Preparing

Laya Lingshi Trek — thirteen days from Paro to Gasa via Chomolhari base camp, Lingshi village, and the Layap community.

The route, in brief

The Layap community

The Gasa Tsachu close

The route, in brief

The Layap community

The Gasa Tsachu close

Shana to Thangthangkha

Thangthangkha to Jangothang

Jangothang — acclimatisation day

Jangothang to Lingshi via Nyile La

Lingshi to Chebisa

Chebisa to Shomuthang via Gobu La

Shomuthang to Robluthang via Jare La

Robluthang to Limithang via Sinche La

Limithang to Laya

Laya — rest day

Laya to Koina

Koina to Gasa

Gasa to Gasa Tsachu

Season

Fitness

Layap cultural protocol

Combine with the Royal Highlander Festival

Begin when you're ready.

The route, in brief

The Layap community

The Gasa Tsachu close

Shana to Thangthangkha

Thangthangkha to Jangothang

Jangothang — acclimatisation day

Jangothang to Lingshi via Nyile La

Lingshi to Chebisa

Chebisa to Shomuthang via Gobu La

Shomuthang to Robluthang via Jare La

Robluthang to Limithang via Sinche La

Limithang to Laya

Laya — rest day

Laya to Koina

Koina to Gasa

Gasa to Gasa Tsachu

Season

Fitness

Layap cultural protocol

Combine with the Royal Highlander Festival

Begin when you're ready.