LakeSerious risk

Sela Lake

Sela Pass, Tawang district · Arunachal Pradesh

A high glacial lake beside Sela Pass on the road to Tawang, frozen for much of the year.

Visit-safety grade
Serious

Manageable with care. The biggest factor is altitude / ams: 4170 m — very high altitude. Est. SpO₂ ≈ 83% arriving unacclimatised. AMS common; HAPE/HACE possible. Sleeping-gain limits are critical.

Altitude / AMS28 pts
4170 m — very high altitude. Est. SpO₂ ≈ 83% arriving unacclimatised. AMS common; HAPE/HACE possible. Sleeping-gain limits are critical.
Remoteness / rescue12 pts
Remote — real medical help and evacuation are hours away.
Water3 pts
Still water; standard boating and slippery-edge caution.

At 4170 m, altitude is the quiet risk. Arriving from low elevation in a single day gives your body no time to adjust — pace the climb where you can, and learn the early signs of AMS.

Score 43/100, re-derived from the site’s real characteristics — never a marketing grade. A higher number is not “don’t go”; it is “go informed.”

Know before you go
  • AMS from crossing above 4000m on a long same-day mountain drive
  • sudden whiteouts, snow and freezing wind at the exposed pass
  • landslide- and ice-prone road with long distances to medical care
The safety code · lakes
  • If it sits high, the thin air — not the water — is the real risk; don't race up from the plains, and learn the signs of AMS.
  • Alpine water and weather turn dangerously cold fast, even in summer — carry warm layers.
  • Remote shores mean slow rescue; share your plan and turn back with time to spare.
When to go
J
F
M
A
M
J
J
A
S
O
N
D
Prime windowShoulderOff-season
Photos

Photos via Wikimedia Commons — full attribution on the credits page.

The essentials
Nearest town
Tawang / Dirang
Elevation
4,170 m
Visit
Roadside / drive-up
Approach
≈0.2 km each way · 10 m climb
Season
Apr–Oct (pass often snowbound in winter)
Permits
1 to arrange (Arunachal Pradesh)
How to reach
Starting point
Tawang / Dirang
Arunachal Pradesh
By air
  • Tezpur (TEZ)~111 km
  • Guwahati (GAU)~163 km
By rail
  • Guwahati~151 km
  • Naharlagun~163 km
By road

Drive to the roadhead Tawang / Dirang. From Tezpur (~111 km) shared taxis and state buses run the last leg to Sela Lake.

Distances are straight-line (as the crow flies), computed from the coordinates. Real road distance and driving time in the mountains are longer — confirm current road status and the last motorable point with your operator, especially in monsoon and winter.

Right now
−4°, clear skies· wind 2 km/h

Live from Open-Meteo at this spot, adjusted to 4,170 m. Mountain weather turns fast — treat this as a hint, not a promise.

Altitude & air
Very high altitude
Elevation
4,170 m
Oxygen vs sea level
~59%
Est. SpO₂ (unacclimatised)
~83%
Air pressure
465 mmHg

AMS common; HAPE/HACE possible. Sleeping-gain limits are critical.

Where it is
3D replay

See it in 3D

A Google-Earth-style flyby that drops in from orbit and traces the real approach trail up to Sela Lake(where it’s mapped in OpenStreetMap), over real satellite terrain — so you can read the climb and the lie of the land before you go.

More lakes
Serious
Pangong Tso
Ladakh
Serious
Chandratal Lake
Himachal Pradesh
Low
Loktak Lake
Manipur

Coordinates, heights and depths are approximate, curated from public sources — good enough to plan and to gauge risk, not surveyed. The safety grade is a deterministic guide, not a guarantee; conditions change with weather, water level and crowds.