The Tsomgo Lake in Sikkim is a holy lake worshipped by the sikkimese. Tsomgo (Changu) lake, which is hardly 20 km away from the famous Nathula Pass and about 400 km from Lhasa. Its cool, a placid water harmony with the picturesque beauty around, which is increased by its reflection in the lake.

A small temple of Lord Shiva is built on the lakeside. Primula flowers and other alpine plantation grow around the Tsomgo lake Sikkim, which has an average depth of 50 ft, provides a pristine beauty to this place. A footpath along the Tsomgo Lake takes one to a resting shed - a walk of about half a kilometre. During the winter months the Tsomgo Lake becomes frozen.

The Tsomgo Lake in Sikkim derives its water from the melting snow on the mountains around, the river Lungtze Chu originates from the Tsomgo lake Sikkim and meets the Rangpo-chu further down its course. During the olden times, lamas used to study the colour of the water of the lake and forecast about the future. If the waters of the Tsomgo lake had a dark tinge, it foreshadowed a year of trouble and unrest in the state. Tsomgo Lake in Sikkim has a few rainbow trout and if you are lucky you may catch a glimpse at them.