The Rotsee is a natural rowing lake on the northern edge of Lucerne, Switzerland. It is 2,400 metres (7,900 ft) long with virtually no current and protected from winds by nearby hills making it an ideal rowing venue.
The first regatta was hosted here in 1933 and since been the venue of many international rowing events. European Rowing Championships were held here in 1934 and 1947. The inaugural World Rowing Championships were held in 1962.