Baixadas Litorâneas Mesoregion, Mesoregion of coastal Brazil in Rio de Janeiro

Baixadas Litorâneas is a coastal mesoregion in Rio de Janeiro that spans across multiple municipalities centered around major port cities. The area features natural bays, sandy coastlines, and several nature reserves distributed throughout its municipalities.

The region was first explored by Europeans in 1504 when Amerigo Vespucci landed and discovered valuable brazilwood resources. Portuguese colonization followed, establishing settlements that became crucial trading posts for controlling the South Atlantic coast.

Indigenous Tamoio and Goytaca peoples once occupied different parts of this coastal land, each maintaining their own way of life. Local place names and customs today still reflect their presence in the region.

Access to the region is easiest through major coastal towns like Cabo Frio, which serve as gateways to the smaller municipalities and natural areas. The area has basic infrastructure spread across its communities, so visiting different parts requires moving between municipalities.

A natural bay formation called Baia Formosa provided excellent anchorage for ships and became a contested focal point between Portuguese and French colonial powers. This geographic advantage made the location central to early European competition for control of the South American coast.