Laguna de Aculeo is since 2018 a dried-out lake located in the city of Paine, Maipo Province, Santiago Metropolitan Region, Chile.

[3][4][5] Local folklore tells of a treasure, an entierro, that is hidden in the mud of the bottom of the lake since 1814.

[6] Once a main tourist destination for individuals in Santiago, the lake featured a popular floating bar in the 1990s.

[3] In 2010, plantations and large estates purchased the water rights of tributaries feeding the lake and rerouted them for their own usage.

[9] Reclamation projects are promoted to identify solutions for long-term recovery, especially voluntary watershed management agreements that will allow the rational and sustainable use of this resource.