Underwater rugby, also known as sub-aqua rugby, was first played in Germany in the 1960s. It is a highly physical and demanding sport that involves two teams of six players each. The aim of the game is to score a goal at the bottom of the pool, while wearing diving masks, fins, and snorkels. It requires a combination of swimming, diving, and ball-handling skills. Underwater hockey and underwater football are two of the synonyms for underwater rugby, but they differ in their rules and equipment. Regardless of the name, it is an exciting and challenging sport that requires strength, skill, and teamwork.