The Chapada dos Guimarães National Park, with caves, grottoes, tracks, and waterfalls, is one of its tourist attractions. In the north is the biodiverse Amazonian forest, which originally covered half of the state. Much of this has been disrupted and cleared for logging, agricultural purposes and pastures. The Xingu Indigenous Park and the Araguaia River are in Mato Grosso. Further south, the Pantanal, the world's largest wetland, is the habitat for nearly one thousand species of animals and many aquatic birds.