Solo diving II. In the late 1940s, after the invention of the Aqua-lung by Cousteau and Gagnan, the first retail underwater breathing apparatus for sport was commercially marketed. As the sport expanded through the 1950s, several sporting organisations – notably the Young Men's Christian Association (YMCA) – began scuba training programmes for swimming enthusiasts, thus began the codification of what was believed to be proper practices for the expanding amateur sport of scuba diving. The buddy system was thought to be a useful corollary to the "never swim alone" edicts of the YMCA swimming and lifesaving programmes. Cousteau independently implemented a buddy
Fabien Cousteau education. Fabien Cousteau is the grandson of famed oceanographic explorer Jacques-Yves Cousteau, and son of Jean-Michel Cousteau who assisted Jacques-Yves on most of his expeditions. Fabien Cousteau was born and raised in France, although he has lived in the United States for the majority of his life. He has a sister, Céline Cousteau. Cousteau's first scuba dive came at age four when Jacques-Yves Cousteau strapped a custom made scuba tank to his back and sent Fabien Cousteau off into the Mediterranean Sea. His interest in sharks began at a young age, about 6 or 7, and was piqued when he