tour to tsango lake...
Tsango Lake or Changu Lake, is located on the north of the Nathu La Pass, and is a glacial lake in Sikkim. The lake is situated at an average elevation of 3780 meters above sea level. It falls in the restricted area and hence an inner line permit is required by Indians to visit this place. Foreign nationals are not permitted to visit this lake without special permission. The lake is about 1 km. Long, oval in shape, 15 meters deep and is considered sacred by the local people.
The lake is surrounded by steep mountains which are covered with snow during winter. During summer the snow cover melts and forms the source for the lake.[1] The lake which remains frozen in winter season, sometimes extending up to May, receives an average annual precipitation of 1,183 millimetres (46.6 in) with temperatures recorded in the range of 0–25 °C (32–77 °F).
The lake is about 40 kilometres (25 mi) away from Gangtok on the Gangtok-Nathula highway. Further, the road to the lake on the north side. The Chinese border crossing is only some 5 kilometres (3.1 mi) east-northeast in a straight line, but some 18 kilometres (11 mi) by road.