Sangu River is the complete part of the natural beauty of Bandarban, Bangladesh. Sangu river follows a northerly circuitous course in the hill tracts up to Bandarban, Bangladesh. Sangu river enters the Bandarban district from the east and flows west across the Bandarban district and finally falls into the bay of Bengal at the end of a course of 270 kilometer. Sangu river is flowing through the hills for thousands of years.