Living RootsTours & Adventure
A high-altitude lake below Sela Pass under low cloud

Hidden gem

Penga Teng Tso (PTSo)

Tawang's closest high lake, frozen solid by January

Altitude

3,700 m

Best time

March to November; December to February for ice

A high-altitude lake below Sela Pass under low cloud
PTSo and the chain of glacial lakes that sit either side of the pass. Near Sela Pass · Photo: Living Roots Tours & Adventure

Penga Teng Tso (PTSo): quick facts

Key travel facts for Penga Teng Tso (PTSo): altitude, best time to visit, distance and driving time.
Altitude3,700 m
Best time to visitMarch to November; December to February for ice
Type of stopHidden gem
Nearby placesY-Junction, Sangetsar Lake, Bumla Pass

Altitudes and timings are indicative; mountain road conditions and access can change with weather and local advisories.

History

A glacial lake on the Bumla road, long used as a grazing halt and now the most accessible high-altitude lake in the district.

Culture

Prayer flags ring the shoreline and the site is treated as sacred — do not enter the water or leave litter.

Photography tips

Reflections need a windless morning, which usually means being there before 8 a.m. In winter the ice patterns near the inlet are worth a macro frame.

Local travel tips

A good acclimatisation test the day before Bumla. If you feel breathless here, tell your guide before committing to 4,633 m.

How to reach

17 km from Tawang town, about 40 minutes.

Plan the trip

Planning a trip with Penga Teng Tso (PTSo)

Ask whether Penga Teng Tso (PTSo) can fit your route and dates. A link to a Tawang package does not mean this destination is included; the confirmed day-wise programme and quotation determine the visits, permissions and services.

The calculator is a planning tool, not a booking form — it gives an indicative budget by group size, nights and hotel category before you ask us for a quote.

Photographs of this route, with the source credited beneath each frame.

  • Bum La Pass on the Indo-China border, 37 km north of Tawang and reachable only with an Army-countersigned permit.Bum La Pass, Tawang district, Arunachal Pradesh · Photo: Itrajib / Wikimedia Commons · CC BY-SA 4.0
  • Sangetsar Tso, better known as Madhuri Lake — the drowned fir trunks date from the 1950 Assam–Tibet earthquake.Sangetsar Tso, Tawang district, Arunachal Pradesh · Photo: Rohit Sharma / Wikimedia Commons · CC BY-SA 4.0
  • The BRO welcome board at Bumla, 15,200 ft — the last stop on the permit-controlled road from Tawang.Bumla Pass, Indo-China border · Photo: Living Roots Tours & Adventure
  • Gontse Gaden Rabgye Ling at Bomdila, built in 1965 by the twelfth Tsona Gontse Rinpoche.Bomdila, West Kameng, Arunachal Pradesh · Photo: Rohit Sharma / Wikimedia Commons · CC BY-SA 4.0

Location map

Nearby attractions

Y-JunctionSangetsar LakeBumla Pass

Keep planning

Where to go next on this site

Planning the whole trip rather than one stop? Start with our Tawang tour package page — it covers routes, permits, seasons, stays and how a Tawang trip is quoted.

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