Lake Guatavita

Lake Guatavita is located in the Cordillera Oriental of the Colombian Andes in the municipality of Sesquilé in the Almeidas Province, Cundinamarca department of Colombia, 57 km northeast of Bogotá, the capital of Colombia.

The lake is circular and has a surface area of 19.8 hectares. The earlier theories of the crater's origin being a meteorite impact, volcanic cinder, or limestone sinkhole are now discredited. The most likely explanation is that it resulted from the dissolution of underground salt deposits from an anticline, resulting in a kind of sinkhole.

There are hot springs nearby in the municipality of Sesquilé, which means "hot water" in the now-extinct language of Chibcha, once spoken by the local indigenous people, the Muisca.

Source: Wikipedia