Parque Nacional de Ilha Grande

The park, with its 78,875 ha, encompasses all the islands and islets from the Itaipu Reservoir and the mouth of the Piquiri River to the mouths of the Amambai and Ivaí rivers, on the Paraná River, the largest of which are Ilha Grande, Ilha Peruzzi, Ilha do Pavão, and Ilha Bandeirantes. The park also includes the várzeas and floodplains along the banks of the Paraná River, the lake and lagoon waters and their surroundings, and the Paredão das Araras. The river waters used for navigation are not part of Parque Nacional de Ilha Grande. Ilha Grande protects highly significant archaeological sites. The area is known to have once been inhabited by the Guarani and Xetá Indigenous peoples.