Buddy diving just before and after the Second World War. After the invention of the "aqualung" by Cousteau and Gagnan, the first commercially underwater breathing apparatus became available for sale for sporting purposes in the late 1940s. As the new sport of scuba diving rapidly expanded through the 1950s, several sporting organisations—notably the YMCA—began programmes to train swimming enthusiasts in this new aquatic pastime, and began to codify what they believed were proper practises for this expanding sport. The YMCA considered the buddy system a useful corollary to the "never swim alone" rule of their swimming and lifesaving programmes. Cousteau himself independently
Fabien Cousteau showmanship. In 2002, he was selected by "People" magazine as the "sexiest explorer" in the magazine's annual listing of the sexiest living men. Cousteau got engaged to Lisa Singer in 2016 on Klein Bonaire, a protected national marine island in Bonaire. Fabien Cousteau Fabien Cousteau (born 2 October 1967) is an aquanaut, ocean conservationist, and documentary filmmaker. As the first grandson of Jacques-Yves Cousteau, Fabien spent his early years aboard his grandfather’s ships Calypso and Alcyone; learning how to scuba dive on his fourth birthday. From 2000–2002, Fabien was an Explorer-at-Large for National Geographic and collaborated on a TV special