The Malwila Raja Maha Vihara is an ancient monastery situated at Saliya Pura in Karadipuwa Grama Niladhari Division of Wanatawilluwa Divisional Secretariat in the Puttalam District. It is located two miles from the turnoff to the North at the Karadipuwa, and traversing nine miles on Puttalam- Mannar Road. According to folk lore prevalent in the area, the monastery had been built by Prince Saliya, son of King Dutugemunu the Great. This sacred site has ruins of a Dagoba, three buildings with stone pillars, a structure that could be identified as a Bodhighara, a stone Buddha statue, moonstones signifying the entrances to buildings and a flight of steps with a balustrade.