The Tsongmo Lake or Changu Lake is a lake of glacial origin of Sikkim in India, located 3,870 meters high in the Himalayan mountains near the border with China. The road which leads to the Himalayan mountain pass of Nathu La (4,310 meters) borders the north shore of the lake.
Tsongmo lake, which is about a km long and has an average depth of 14 meters, is located just 40 km from the country’s capital Gangtok. The body of water, which in winter freezes completely, is considered sacred by the Hindu and Buddhist populations of Sikkim, on its banks is a small temple dedicated to Shiva.
The lake is one of the most popular tourist attractions of Sikkim and can be reached in two and a half hours by bus through the road that leads up to Nathu La mountain pass.
The lake is a resting place for many migratory birds and other birds and aquatic species also live there, in this area is also the Red Panda (Ailurus fulgens).
The best time to visit the lake are the months between May and August when the vegetation around the lake is enhanced by flowers.