Milan

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.
Sports within the park include kayaking, canoeing, dragon boats, rowing, sailing, swimming, horse riding and water skiing. The park is used by the Idroscalo Club, Lega Navale Italiana, and CPPC sports clubs. The lake's first rowing races were in 1934.
The competition venue is provided with a building embodying the arrival tower, various offices available to the different sectors, a wide conference room, anti-doping control rooms, the sheltered tribune receiving 900 spectators, a 300 m long five-row staircase with plastic chairs which extends for another 200 m with concrete steps.