Longest time spent living in an underwater fixed habitat

Longest time spent living in an underwater fixed habitat
Who
Joseph Dituri
What
100:00:00 day(s):hour(s):minute(s)
Where
United States (Key Largo)
When

The longest time spent living in an underwater fixed habitat is 100 days, and was achieved by Joseph Dituri (USA), who entered Jules’ Undersea Lodge, a steel-and-glass facility anchored at a depth of 9.14 m (30 ft) just off the coast of Key Largo, Florida, USA, on 1 March 2023, as verified on 9 June 2023.


Joseph Dituri is living underwater as part of Project Neptune 100, which was organized by the Marine Resources Development Foundation. He plans to stay underwater for 100 days.