Obstacle swimming is a sport in which competitors swim through a water course that includes obstacles that impede their path between the starting and finishing point.
It has been an event at various international sporting competitions like the 1900 Summer Olympics.
[1] It is also one of the five events that are a part of the military pentathlon,[2] and has been used as a part of recruitment competitions for the Royal Marines.
[3] Progressing through underwater obstacles has also been integrated into the obstacle courses of the American Ninja Warrior competition.
[4]