Ballet in the water or artistic swimming
This discipline is a graceful, feminine (since 2017 men also can participate in mixed duet) sport, where ladies (and as of recently mixed duets) perform different technical elements, formations in and under the water surface accompanied to music. Artistic swimming is an Olympic Sport since 1984. The first competition was held back in 1891 in Berlin for Ladies, while a year later a similar contest was organised for Gentlemen in London. In those days the sport was called artistic swimming or water ballet.