Tsomgo Lake or Changu Lake is a glacial lake in the East Sikkim, India, some 40 kilometres (25 miles) away from Gangtok at elevation of 3,780 m (12,400 ft).
The road to “Nathu La” passes the lake on north side. The Chinese border crossing is only some 5 kilometres (3.1 miles) east-northeast in a straight line, but some 18 kilometres (11 miles) by road.
Indian Postal Service released a commemorative stamp on the lake on 6 November 2006.
BEST TIME TO VISIT
During winters (From January to mid May) Changu Lake is complete covered in snow and you can enjoy trekking as well as Yak ride on snow along the coasts of the lake. From October to December, the lake is partly covered in sheet ice and migratory birds can be seen waddling in the lake’s water. From April to July, you can witness a good bloom of flowers. Most of the year, Changu Lake experiences a sparkling weather.