Continental Shelf Station Two

The alternate designation Precontinent has also been used to describe the set of projects to build an underwater "village" carried out by Jacques-Yves Cousteau and his team.

Men on the bottom performed a number of experiments intended to determine the practicality of working on the sea floor and were subjected to continual medical examinations.

[3] The work was funded in part by the French petrochemical industry, who, along with Jacques Cousteau, hoped that such manned colonies could serve as base stations for the future exploitation of the sea.

[5][6][7] Such colonies did not find a productive future, however, as Cousteau, after forming Conshelf Three a few years later,[4][8][9][10] withdrew his support for such exploitation of the sea and put his efforts toward conservation.

It was also found in later years that industrial tasks underwater could be more efficiently performed by undersea robot devices and divers operating from the surface or from smaller lowered structures, made possible by a more advanced understanding of diving physiology and more complex mixtures of breathing gases.