Sangetsar Lake is a high mountain lake at an elevation of 3.708m (12,165ft) above the sea level located in the Tawang district, in the northwestern part of Arunachal Pradesh in India. It’s one of the remotest high altitude lakes in India.
Often known as Madhuri lake, the road is terrible. It’s one of the famous hairpinned roads in the world. 4x4 vehicles only. Expect a narrow gravel road, unprotected by guardrails. One requires a special permit from the District Commissioner's (DC) office located at Tawang to visit this lake. Only Indian nationals are allowed here. This lake was formed during the earthquake of 1973. Starting in Zemithang, the road has 52 hairpin turns.