Gurudongmar Lake, 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