Piauí is a state in northeastern Brazil known for its national parks. The Serra da Capivara National Park, in the southeast of the state, has archaeological places with prehistoric cave paintings and is a UNESCO World Heritage Site. Nearby, the Serra das Confusões National Park has gigantic rock formations and large areas of caatinga (semiarid vegetation), where birds at risk of extinction live. On the coast, the Delta do Parnaíba Environmental Protection Area is the only Delta in the Americas that flows into the open sea. Located on the border between the states of Piauí and Maranhão, it is the 3rd largest in the world. Ideal setting for those who like to combine nature and adventure. Also, there are more than 70 islands full of water features, mangroves, dunes, lakes and wild animals. A rich coastal ecosystem in our state.