Tsomgo Lake – referred as Tsongmo Lake or Changu Lake is a glacier lake in the East Sikkim, India. Tsomgo Lake surface reflects different colors with change of seasons. There are numerous Buddhist sites as Lachung Monastery, Enchey, Rumtek, Dubdi, Pemayangtse, Sanga Choeling, Phodang Monastery. Tsomgo Lake is surrounded by steep mountains and formed in an oval shape.