Artistic swimming is a sport which combines swimming and dance to such a level that it was originally called water ballet. To compete, swimmers perform solo, duet, trio, team, or combo routines. All routines begin on the pool deck, but quickly move to the water, where swimmers show off their artistry, flexibility, strength, and endurance. Routines are synchronized to music and must include certain components, depending on the level of competition. Athletes also compete individually, in the figures competition, when each swimmer performs artistic swimming techniques for the judges.