The Idroscalo is an artificial lake in Milan, Italy that was originally constructed as a seaplane airport. It opened on 28 October 1930, in the heyday of seaplanes. When the use of seaplanes for passenger transport declined it became a recreational and sport facility. The lake is 2,600 m (8,500 ft) long and was constructed in the late 1920s. Its width ranges from 250 m (820 ft) to 400 m (1,300 ft) and depth from 3 m (9.8 ft) to 5 m (16 ft). It is situated between the municipalities of Segrate and Peschiera Borromeo, just within Milan's city limits and near Linate Airport.