Buraco das Araras (Hole of the Macaws) - Jardim - Mato Grosso do Sul - Brazil

Photo: wikipedia



Discovered in 1912, this geological formation resulting from the collapse of rock blocks through thousands years ago creating this enormous cavity: it has a circumference of 500 meters (1600 feet) and the depth reaches 100 meters (330 feet). At the bottom, an emerald-green lagoon, surrounded by exuberant vegetation, is home to caimans whose survival is a mystery. Besides