Randenigala Dam is one of Sri Lanka’s largest reservoirs fed by the Mahaweli River. A large hydroelectric dam in the central province of Sri Lanka opened in the year 1986. Standing tall at an impenetrable height of 94m high and 485m in length it is an awe-inspiring structure. The surface area of the reservoir is 1,350 hectare. The man-made lake is picturesquely located and spotted with small islands bordered on its northern shores by a National Park.