A place of rare ecological-environmental beauty, stretched along the left bank of the Arade River. The park occupies an 18-hectare plot of land, where different environments are found: salt marsh, marshland, scrubland, a lagoon, agricultural areas, flats and watercourses. Nearby there are ancient traces of human activities such as water mills. It has a reception building, guard's house, restrooms, open-air amphitheater, picnic area, maintenance route and a pier.

This set of two caves is located on the left bank of the Arade river estuary. The biggest of them is 100 metres long and the smallest only a few tens of metres. It is a place where archaeological vestiges of the copper and bronze ages have been found. The largest cave is visited by many tourists. It has large, tall rooms, up to six metres, and a shallow lake.

The Arade river ends with the Rocha Beach in the background and the parishes of Portimão and Lagoa (in the lovely Ferragudo parish) by its banks. The piers, on each bank, lend a special colour to the rather calm river and to the fishing boats.