The Rainier III Nautical Stadium, managed by the Municipal Service of Sports and Associations, is an outdoor swimming pool located in the middle of Port Hercule.
The Olympic-size pool (50m x 25m) has 3.000m³ of seawater treated, filtered and heated to a very comfortable 27 °C. It has diving platforms of 1m, 3m, 5m and 10m in height as well as a flume and mini slide for younger customers. The beach areas around the pool have sun loungers and umbrellas for hire and the entire area is supervised by qualified life guards.
