This national park is made up of a mosaic of diverse floodplain habitats, bordered by rivers and a ridge of limestone hills. The Palo Verde area is subject to seasonal floods of great magnitude due to its lack of natural drainage. This produces a greater ecological diversity-between 12 and 15 habitats have been identified. These habitats include salt and fresh water lakes and swamps, grasslands with black mangroves, mangrove swamps, pastures, lowland stunted forests, wooded savannas and evergreen forests.