Between the urban area of Cagliari and the sandy shore of Poetto, extends the pond of Molentargius, adjacent to those of Quartu and La Palma. Molentargius, the largest and most important pond, is connected to other ponds in the Is Arenas area. It has its name for the means used in the past to transport salt crops into its basins: the \"molenti\", which in Italian means donkey. In fact, the area has for centuries represented the richest basin in Sardinia for the extraction of salt from the waters of the sea, which was interrupted only in 1985. The pond is divided into two basins: the Bellarosa Minore, which collects wastewater and rain, and the Bellarosa Maggiore, with a high degree of salinity, used for evaporation of salt. Declared Regional Park for its precious and delicate ecosystem, the Molentargius pond is frequented by 180 species of birds, many of which rare, preferring areas based on the chemical nature of the water. There are, just to name a few, the garzetta, the sultan chicken, the knight of Italy. These birds live in sweet waters, while avocados, cormorants, herons, seagulls, pink flamingos prefer brackish waters. Here, among cannoles, rushes and algae, the majestic pink flamingos have established their permanent habitat since about ten years. With the elegance of their long paws and their pink plumage, when flying in the air, they offer a breathtaking spectacle.
The Gennargentu Park, beautiful in every season but more alive during the spring, in the cold winter is often whitened by abundant snow. Inside the Park you can admire the largest and majestic canyon of Europe: Su Gorroppu, with its high rock walls. Not far away is Tiscali\'s throat with its nuragic village. In this context you can see the Rio Flumineddu, full of water and vegetation throughout its course.
To the north of the Gulf of Oristano, in the Sinis peninsula, extends the pond of Cabras, which, with the adjacent wetlands of Mistras, Pauli \'and Sali and with the pond of Porcus Salt, near Putzu Idu, forms a damp environment of international importance, recognized by the Ramsar Convention (Iran). The origin of these areas is due to the formation of sandy cords, which in time have isolated sea sections, and the progressive accumulation of debris and sediments transported by rivers, including Tirso. The Cabras pond, which occupies 2,200 hectares of land, is one of the richest marshland ecosystems in the Mediterranean, showing signs of economic and social life that has long been around. The semi-detached buildings and the picturesque huts that lie around testify, in fact, the main activity carried out in its waters, rich in muggins, mascots, eels, murmurs, bushes: fishing. Fishing was done on craft made with the interlacing of the grass (fassonis) especially in the most important area of the pond, Mar\'e Pontis. In the pond you can practice fishing and sport fishing. The presence of a rich bird life also allows interesting excursions with binoculars, for those interested in birdwatching. In the area there are several ittiotourisms, hotels and restaurants.
Gusana is an artificial lake built between 1959 and 1961 in the territory of Gavoi, in Barbagia, bordering the Gusana River between Mount Littederone and Nodu Nos Arcos. The lake lies at the base of the granite plateau of Fonni and is perfectly located in the landscape, surrounded by reliefs covered with roverelle that give it a characteristic aspect. The charm of its water, combined with its woody colors and the sparkling air of the Barbagia Mountains, make Lake Gusana an ideal destination for spending days in close contact with nature: in its waters it is possible to, in fact, go fishing for trout, carp, tinca and perch fish. The area is close to the archaeological sites of Santu Mikeli, the domus de janas of S\'Iscrithola and the megalithic complex of Perdas Fittas. For this reason, various accommodation facilities were built on its banks.
The artificial lake Mulargia is a water-spark that extends into the territories of Orroli, Goni, Nurri and Siurgus Donigala. It is surrounded by lush green hills that degrade toward its jagged coastline, and in it is adorned with many islets, taking on the chromatic effect of a huge blue spot immersed in greenery. Nearby you can visit the archaeological park of Pranu Muttedu and the Nuraghe Arrubiu of Orroli. In addition, it is equipped with sports facilities and is yearly animated by rowing and fishing competitions. But it is also the ideal place to enjoy a relaxed holiday: along its banks there are many structures, from which you can enjoy a wonderful panorama, from the lake flees to the surrounding areas of Trexenta, Sarrabus, Gerrei . Of great interest is also the boat excursion, departing from Siurgus Donigala and Orroli.
There are ponds numerous ponds scattered within the natural reserve of the vast basaltic and limestone plateau of the Giara. In the park there are lush forests of cork oaks, roverelle, holm oaks, and Mediterranean shrubs. The fame of the area is mainly linked to its wild and unspoilt beauty, inhabited by very rare animals. The area is frequented by the only wild horses’ herd in Italy and Europe, known as \"Giara horses\".