A mixed-type dam (earth and buttress) located in a rugged area of ​​fields and olive groves on the Caia River. Sports and leisure activities are restricted to certain areas of use.

A lagoon of approximately 1.3 km² with an elongated shape, formed by two main lagoon bodies connected by a narrow channel. Surrounded by vast sandy cliffs, this location has calm waters and serves as a refuge for migratory, aquatic, and wading birds. It is believed that this lagoon may have been the Tagus River's route to the sea, located 150 meters away. This fish spawning ground has protected dunes.

From Ancão (east of Faro) to Manta Rota Beach, the Ria Formosa presents itself as a unique configuration that gives the Algarve's leeward coast a special color. The 60 km that make up the Ria Formosa Natural Park are composed of semi-still waters, mudflats, mangroves, salt pans, channels, and five islets. Barreta, Culatra, Armona, Tavira, and Cabanas are the names of these constantly transforming sandy formations, which, separating the land from the sea, create an extremely rich natural barrier in terms of flora and fauna. It has been classified as one of the Seven Natural Wonders of Portugal.

Ideal for sport fishing enthusiasts, the mouth of the Guadiana River offers excellent views of the neighboring country. In Castro Marim, with the widening of the riverbed, the area classified as a Nature Reserve is dominated by salt marshes and former rice paddies. The Guadiana River runs for 830 km and is navigable for the last 48 km, where its width varies between 100 and 500 meters.

Gravity dam, intended for hydroelectric power generation, completed in 1999.

A lagoon of great scenic beauty, it is on the path to progressive silting. The lagoon is formed by a central area and several arms, such as Barrosa or Bom Sucesso. In the past, the ocean reached the walls of Óbidos.

Small reservoir with water dammed for irrigation. It is surrounded by trees and is composed of native vegetation mixed with stands of non-native species and varied fauna, namely ecological niches of several species. Nearby is the Penha Longa church, a national monument.

A small lagoon with a very unique formation, appearing to be located in the crater of a volcano. It is surrounded by a pleasant, spacious, and peaceful green area, ideal for strolling.

This is one of the lagoons of Sete Cidades. Surrounded by a paradisiacal landscape, it invites you for a stroll or a picnic on its tranquil shores. The famous legend attributes the different color of the lagoon's waters to the tears shed by a blue-eyed princess and a green-eyed shepherd, upon seeing their love thwarted. It has been classified as one of the Seven Natural Wonders of Portugal.

A small lagoon surrounded by a forest park and a picnic area. There is also a viewpoint here offering a magnificent view of the Gruta do Inferno, a canyon through which a tributary of the main stream that feeds the Lagoa das Sete Cidades flows.