Argus Island was an acoustic research tower and platform located on , a guyot about 30 miles southwest of the island of Bermuda. The tower was originally part of the facilities supporting Project Artemis and Project Trident under auspices of the Tudor Hill Laboratory, a facility of the US Navy's Underwater Sound Laboratory. Later the tower was used for additional acoustic experiments as well as oceanographic observations, wave height measurements, optical observations, air containment measurements and measurements of the effects of the ocean environment on the structure itself.