The Yumthang Valley or Sikkim Valley of Flowers sanctuary, is a nature sanctuary with the river, hot springs, yaks and grazing pasture on rolling meadows surrounded by the Himalayan mountains in the North Sikkim district of Sikkim state in India.

Lake Gurudongmar

Lachung is a mountain village close to the Tibetan border, in the northeastern Indian state of Sikkim. It's divided by the Lachung River. The village is home to the 19th-century Buddhist Lachung Monastery, surrounded by apple orchards. Nearby, the Yumthang Valley's Shingba Rhododendron Sanctuary protects many species of rhododendron. The valley is also known for its waterfalls, pine forests and hot springs.