Rara Lake - Mugu:

Rara lake is situated in Nepal. It is the biggest and the deepest freshwater lake in Nepal. Rara Lake lies at an altitude of 2,990 m above sea level. It has a water surface of 10.8 km2, a maximum depth of 167 m, is 5.1 km long and 2.7 km wide. It drains into the Mugu Karnali River via the Nijar River.
Its water quality is characterized by high pH, conductivity and total hardness. Winters are very cold. The best visit time is April to May.

It is surrounded by Rara National Park so, there are lots of rare and beautiful plants and animals. The Park flora consists of 1074 species, of which 16 are endemic to Nepal; the fauna includes 51 species of mammals and 214 species of birds.