 277.5) of Route 10 and the south end of Route 16, on the coast of the Atlantic Ocean, about southeast of Castillos and between the lagoons Laguna de Castillos and Laguna Negra.Its nominal distance from Montevideo is 288 km, using Ruta Interbalnearia, Route 9 and Route 16 (via Castillos).In 2011 Aguas Dulces had a population of 417 permanent inhabitants and 1,596 dwellings.