Continental_Shelf_Station_Two--Jacques_Yves_Cousteau

Continental Shelf Station Two or Conshelf Two was an attempt at creating an environment in which people could live and work on the sea floor. It was the successor to Continental Shelf Station One (Conshelf One).
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. The projects were named Precontinent I (Conshelf One), Precontinent II (Conshelf Two) and Precontinent III (Conshelf Three). Each following project was aimed at increasing the depth at which people continuously lived under water.