Sessa Orchid Sanctuary is a protected area in the Himalayan foothills in Bhalukpong Forest Division of West Kameng District, Arunachal Pradesh. It is spread over 100 sqkm. It is a part of the Kameng Protected Area Complex (KPAC), which is an Elephant Reserve.
The Dihang-Dibang Biosphere Reserve is one of the few nature preserves around the world which are untouched from the modern civilization. Non of the parts of the BR is approachable by road and has to be approached on foot only.