It includes Atlantic Forest, mangrove, salt marsh and estuarine environments in an area with a relatively low human population.

[1] It covers parts of the municipalities of Antonina, Campina Grande do Sul, Guaraqueçaba and Paranaguá in the State of Paraná.

[2] Objectives are to protect biological diversity, manage human impacts and ensure the sustainable use of natural resources.

The area was created to protect one of the last representative areas of Atlantic Forest biome as well as the Paranaguá Bay estuarine complex and archaeological sites, to control the use of pesticides, to preserve the caiçaras communities that have become integrated into the regional ecosystem and to establish rational criteria for land use in the region.

[4] Protected species include black-fronted piping guan (Pipile jacutinga), red-tailed amazon (Amazona brasiliensis), white-necked hawk (Buteogallus lacernulatus), black-headed berryeater (Carpornis melanocephala), purple-winged ground dove (Claravis geoffroyi), neon goby (Elacatinus figaro), Superagui lion tamarin (Leontopithecus caissara) and fasciated tiger heron (Tigrisoma fasciatum}.