The Gurudongmar Lake or this is also known as the Gurudogmar Lake is located in North Sikkim, and is only at a distance of 5 kms south of the Chinese border. This is referred to as the second highest lake in the country. This is located at an altitude of 17,100 ft above sea level. One can reach this lake by road from Lachen via Thangu. The lake is ffrozen in the winter months between the months of November to March, as it gets very cold here. The lake is bordered by the barren mountains and one can even see the Kanchenjunga range which can be seen from the Lake.