Rangamati is a district in south-eastern Bangladesh. It is a part of the Chittagong Division. Rangamati share the bordered Tripura state of India to the north, Bandarban District to the south, Mizoram State of India and Chin State of Myanmar to the east, and Khagrachari and Chittagong Districts to the west. By area, Rangamati is the largest district of the country. Rangamati is famous for its landscape, scenic beauty, lake, flora and fauna, indigenous museum, hanging bridge etc. Chakma, Marma, Tripuri, Pangkhua indigenous community are living in Rangamati.
Kaptai Lake the country’s largest artificial lake in Rangamati, which was created in 1960 for hydroelectricity. Kaptai National Park cascades between the Karnaphuly and Kaptai Mountain assortments. Shuvolong a place in Barkol sub district, located about 25 kilometres away from Rangamati town, transportation by boat, waterfalls seen in Shuvolong. Sajek Valley is a union at Baghaichari Upazila in Rangamati districts. Basically it is name of a river which separates Bangladesh from India. The river flows into the Karnafuli River in the Chittagong Hill Tracts. Sajek Valley is situated in the North angle of Rangamati, near the Mizoram border boundary area. The valley is 1,800ft high form sea level.