 Each ensuing project was aimed at increasing the depth at which people continuously lived under water, and were an attempt at creating an environment in which men could live and work on the sea floor.The projects are best known as Conshelf I (1962), Conshelf II (1963), and Conshelf III (1965).The names "Precontinent", and "Continental Shelf Station" (Conshelf) were used interchangeably by Cousteau.