A town in the North Sikkim District of Sikkim, this is located at a height of more than 2500 meteres. The name 'Lachen' means a big pass and the Sikkimese government is trying to promote this place as a new tourist destination. The annual yak race called thangka is held here every here. Lachen is like a gateway to Gurudongmar Lake and Chopta Valley. A drive to this place is an adventurous 6- hour journey and is a memorable experience for the rest of your life or till you experience it again.