In open water swimming, the shoulder turn indicates which side to swim around a buoy. A “left shoulder turn” indicates that the buoy should remain on the swimmer’s left side.
This terminology will aid in completing the courses in the right way when relocating a line of buoys in a race. Officials and announcers use this terminology to provide distinct directions to athletes. Incorrect buoy turns cause a penalty in terms of time or disqualification. For both open water swimmers and triathletes, the knowledge of how to do shoulder turns correctly will keep you on the right course and in accordance with rules.