Farm and cowboy near Calima Lake in Darien in the Cauca Valley, Colombia, South America. Calima is the largest artificial lake in Colombia with an area of 70 km2. It is located in the municipality of Darien in the Valle del Cauca Department. The lake is part of a hydroelectric project for generating power for the department. C.V.C (Corporacion Autonoma Regional del Valle del Cauca) started construction of the lake by 1961. Calima Lake has become a place for water sports and leisure activities. Vacation centers, restaurants and camping zones were built near the lake, and is currently a popular place frequented by both national and international tourists, especially those from nearby cities and towns like Cali and Buga.