The Oleta River State Park is a 1,033-acre state park on Biscayne Bay in the municipal suburb of North Miami Beach in metropolitan Miami, Florida. Adjoining the Biscayne Bay Campus of Florida International University, the park contains one of the largest concentrations of Casuarina trees, an invasive species in the state park system. Along the park's coastline are mangrove forests. They provide vital nurseries for aquatic life and filter urban pollutants from coastal waters.