This reserve extends over 23,160 hectares of marshland, dunes, salt marshes and other wetland areas. It is a nesting place for many birds and a development area for many marine species. Here you will find white storks, flamingos, herons, water hens, waders and, of particular interest, a community of 30 bottlenose dolphins (Centro de Interpretação e Percursos Pedestres, 265 541 140. Praça da República, Setúbal.)