Situated in the northern district of Sikkim, Lachen is one of the most beautiful towns in Sikkim and is an attractive tourist spot. Its natural beauty and serene vegetation are worth commending and it is believed to be one of the most noteworthy and popular places for Buddhist pilgrims and tourists. Lachen is a less-populated beautiful holiday destination, also famous as the gateway to the sacred Guru Dongmar and Tso Lhamu lakes. Lachen is a small quiet town which is the home to Bhutia tribes and Tibetans and there are about only 150 houses there.

Lachen, is a lovely hill station in the northern district of Sikkim near the Indo-Tibetan Border, on the North Sikkim Highway. The most prevailing area in Lachen is the Nyingma order of Himalayan Buddhism and the Lachen Monastery, positioned atop the village providing a great sight of the village, Lachen Chu and the alpine covers. Lachen is known for its lush vegetation that contains mainly grasslands and shrubs along with apple orchards that are the major tourist attraction here.

The pine-covered valleys and black cliffs of snowy-white hills of the Eastern Himalayas start from Lachen which makes it the base station for many trekking areas in the North Sikkim region including the famous Green Lake and Kanchenjunga National Park treks.