Aritar is a region in the East Sikkim district of the Indian state of Sikkim under Rongli Sub-Division. It is known for its natural and landscaped beauty. It is located on the edge of the Himalayas, and can be reached in about four hours' drive from Gangtok via either Pakyong or Rangpo.
Isolated from the rest of the state, on the far eastern border of Sikkim and bounded by Mt. Kanchendzonga, the region is characterized by lush forest, mountains and rivers. The Aritar Lake (Ghati-Tso) is a nearby attraction, as are traditional villages and monasteries such as Lingsay. Visitors may also stay in a British-built bungalow of 1895 located 0.5 kilometres (0.31 mi) below the lake.