Santa María del Lago, Protected wetland in Engativá, Colombia.

Santa María del Lago is a 10.86-hectare wetland in Engativá, Bogotá, with a 5.64-hectare wooded area around its water mirror. It has two entrances, each with a gatehouse, and is one of the city's Environmental Classrooms run by the Secretaría Distrital de Ambiente. Willows, alders, rushes and water umbrellas grow here.

Ruperto Restrepo acquired the land in 1911 through a court auction; in 1936 President Alfonso López Pumarejo bought the 43-hectare estate for 500,000 pesos, when a water mirror of about 4.5 hectares was recorded. Urbanization followed: 3.4 hectares went to the Santa María del Lago development, and the 1954 annexation of Engativá to Bogotá enclosed the wetland. It is now a Distrito de Humedal reserve under Decreto 555 of 2021.

The name references the Virgin Mary and the water that defines this space. Local groups use it today to teach visitors how nature and urban life connect.

Wooden platforms and paths guide visitors through the site for nature watching. Early morning is the best time for bird watching when animals are most active.

A rare dragonfly species called Ischnura cruzi lives here and exists in only a few places. At the same time, the water naturally filters pollutants from the city.