Source: CNN
“A Florida scientist who calls himself Dr. Deep Sea has broken the record for the longest time lived underwater. In an Instagram post on Sunday, US Navy veteran Joe Dituri announced that he had spent 73 days in a habitat under the sea, and he plans to spend a total of 100 days deep below in the name of science. … Dituri aims to return to the surface on June 9, when he will undergo ‘an in-depth examination by a team of medical doctors to learn more about how the body reacts to such an environment,’ he said in another Instagram post. … According to Guinness World Records, the record for the longest time spent living underwater in a fixed habitat was previously held by two American biologists, Bruce Cantrell and Jessica Fain, who spent 73 days in the same undersea lodge as Dituri.” (05/15/23)
https://www.cnn.com/2023/05/15/us/underwater-scientist-record-scli-intl-scn/index.html