Gurudongmar is a high altitude lake close to Tibet boarder in North Sikkim. It is the land of Yaks, blue ships and other high altitude animals of Sikkim and Tibet. The snow-fed milky water of the lake is one of the major sources of Tista, the most important river in Sikkim and North Bengal.
Gurudongmar is one of the highest lakes in the world, located at an altitude of 17,800 ft (5,430 m) in the Indian state of Sikkim. It is a lake which is considered sacred by both Buddhists and Sikhs. The lake is named after Guru Padmasambhava, also known as Guru Rinpoche, founder of Tibetan Buddhism who visited the lake in the 8th century.
The lake is not only blessed by Guru Padmasambava but also by Guru Nanak, the spiritual leader of Sikhism while he had passed through this area, and hence regarded as sacred.