Rio Puruba flows through the Atlantic Forest coast of São Paulo State in southeast Brazil, situated within or adjacent to the Parque Estadual da Serra do Mar, a state park established in 1977. The river runs through a region of remarkable ecological richness, characteristic of the Atlantic Forest biome, and empties toward the coastal zone near the community of Puruba. The area supports artisanal fishing traditions that have been practiced by local communities for generations, making it a culturally significant waterway as well as a natural one.