The coastal plateau in Rio Grande do Sul features areas of great value in the environment of the extreme south of Brazil and has formed as a result of the advance and retreat of the sea.

The Taim wetlands contains diverse ecosystems, in lagunal and marine beaches, lagoons, swamps, grasslands and dune ranges and fields.

Due to its diverse ecosystems, many species of animals, such as rufous hornero, turtles, tuco-tucos, capybaras, coypus, broad-snouted caimans and a considerable number of birds are found here.

The flora is also very diverse, featuring Ficus, Erythrina crista-galli, Tibouchina, orchids, Bromelia, cacti, rushes and water hyacinths.

[citation needed] The Ecological Station was a "strict nature reserve" under IUCN protected area category Ia.