Indigenous guards from the Pasto ethnic group stand at the Green Lake ("Laguna Verde" in Spanish), in Tuquerres, department of Narino, Colombia, on August 29, 2024. In the Andes mountains of south-west Colombia, the crater of a volcano shelters an enchanting lake in fifty shades of green, a natural treasure that was once threatened by mass tourism and is now watched over by an indigenous community. (Photo by JOAQUIN SARMIENTO / AFP)