This Environment section provides information on the landscape heritage of the AMP’s municipalities, including information on 166 sites that can be used for open air entertainment and leisure by inhabitants and visitors, as well as information on the thick hydrographic network all over the Porto Metropolitan Area and with a structuring function of the landscape (Antuã, Arda, Ave, Caima, Douro, Febros, Inha, Leça, Paiva, Sousa and Ferreira, Tinto and Torto, and Uíma).