Rainier III Nautical Stadium

The Rainier III Nautical Stadium is a municipal sports complex on the Route de la Piscine in the La Condamine district of Monaco, in Port Hercules.The swimming pool itself originally existed as sectioned off part of the harbour, dating back to at least 1949. However, construction was expanded in 1961, with the addition of a link road and expansion of facilities. The stadium consists of a heated saltwater Olympic-size swimming pool, with 1, 3, 5, and 10m diving platforms, and a 45m slide. The pool is converted into a 1,000m2 ice rink from December to March.The pool gives its name to the "Swimming Pool chicane" at the annual Monaco Grand Prix.Contrary to popular belief, the construction of the Nautical Stadium caused no changes to the layout of the Circuit de Monaco, as at the time, the original layout continued up a ramp, past the Tabac, on a road directly overlooking the swimming pool that is now grandstands and the pit lane.

Source: Wikipedia