The Piscina Irgas waterfall is located in the Sardinian municipality of Villacidro, in the province of Southern Sardinia. It is located almost on the border with the territory of Domusnovas, surrounded by peaks that reach approximately 700 m in height. It represents one of the most famous waterfalls in the municipal area of Villacidro together with that of Sa Spendula and Muru Mannu (or great wall) in Sardinian.