Want to permanently live underwater? 

Dennis Chamberland does and he wants anyone to be able to join him within a decade. Set to commence by this year, the first expedition will be initiated by the submersion of the Leviathan, a small underwater habitat that can house up to four people. He’s not only certain that the colonization of the ocean floor is imminent; he’s making it happen.

Take a look at this video on one man's drive to live underwater with all the comforts of home.

http://www.motherboard.tv/2010/3/10/the-aquatic-life-of-dennis-chamberland-one-man-s-quest-to-colonize-the-sea