Con Son Island, Con Dao Archipelago: The Côn ??o Islands are an archipelago of Bà R?a–V?ng Tàu Province, in the southeast region of Vietnam, and in a district of this province. The Con Dao Archipelago is one of the most beautiful and least developed destinations in Vietnam. There are beaches, forests, mountains, history, mythology, and a quiet town with crumbling French colonial villas on the seafront. There are two sides to the Con Dao Islands when you visit: one day spent swimming in the clear sea, walking upon white sand beaches, driving along deserted coast roads, and drinking cocktails on the seafront promenade; another spent visiting the prisons, learning about former inmates – many of whom are celebrated national heroes – and witnessing remnants of their forced labor, which caused hundreds of prisoners to die. The former is the future of the Con Dao Islands as a tropical paradise. The latter is its past as a penal colony, set up by the French colonial administration. Con Son is the largest of 15 islands in the Con Dao Archipelago, 80km from the mainland Mekong Delta region and 230km from Saigon.