Ballao shares with other Sarrabus towns the course of the Flumendosa River; in particular, the town overlooks a bend in the island’s largest watercourse and near the confluence with the rio Stagnali. The latter watercourse has numerous small lakes and meanders where it is possible to observe the fauna and flora typical of riverine landscapes. In the shade of tamarisk trees, oleanders, live ducks, grey herons, pheasants and turtles, of note is the relative abundance of the nutria, a mammal native to South America and introduced to the island half a century ago for the exploitation of its fur. The friendly animal, similar to a large beaver, lives in natural pools and thus also in that of Corru ‘e Arenas, has thick dark fur and can rarely be observed far from the water. The scenery of Corru ‘e Arenas is in some ways unique, with a vast and interesting perennial body of water, with a pleasant resting and picnic area easily accessible. This represents one of the many river environments that are to make up the future Flumendosa River Park, strongly desired by the people and capable of enriching the tourist offer of the area. A visit to the Interacquas Municipal Park, a short distance from Ballao and the abandoned Corti Rosas mine, is suggested.
