Aquarius is one of the last underwater research facilities in the world & is located off of the Florida keys. The structure is owned by Florida international university & is only used by their research students who stay there 10 days at a time. The structure can house 6 people at a time and is located about 120 feet below the ocean surface. Making it one of the deepest underwater structures in existence. There is air conditioning, refrigerators, plumbing, and even internet access.