Buraco das Araras (hole of Macaws)is one of the largest sinkholes in the world, approximately 100 meters deep and 500 meters in circumference, located in the municipality of Jardim-Mato Grosso du sul in Brazil. It covers an area of 29.03 hectares in the Cerrado biome. There is a vivid green lagoon at the bottom of the sinkhole surrounded by thriving vegetation. The hole is occupied by caimans, armadillos, anteaters, coatis, foxes, the macaws for which it is named, ibises, toucans and many other species of birds.