A university professor broke a record for the longest time living underwater without depressurization this weekend at a Florida Keys lodge for scuba divers.

Joseph Dituri’s 74th day residing in Jules’ Undersea Lodge, situated at the bottom of a 30-foot-deep lagoon in Key Largo, wasn’t much different than his previous days there since he submerged March 1.

Dituri, who also goes by the moniker “Dr. Deep Sea,” ate a protein-heavy meal of eggs and salmon prepared using a microwave, exercised with resistance bands, did his daily pushups and took an hour-long nap. Unlike a submarine, the lodge does not use technology to adjust for the increased underwater pressure.

The previous record of 73 days, two hours and 34 minutes was set by two Tennessee professors — Bruce Cantrell and Jessica Fain — at the same location in 2014.

But Dituri isn’t just settling for the record and resurfacing: He plans to stay at the lodge until June 9, when he reaches 100 days and completes an underwater mission dubbed Project Neptune 100.

Read more: AP