"I have been lucky enough to participate in some incredible stunts during my radio career, but this was truly an amazing challenge and attempting a Guinness World Records title is a total world away from my every day," Tolan said. "The team at the Atlantis were incredible to work with and the support from my team at 104.8 Channel 4 made the whole challenge an incredible team effort!"
The show eclipsed the previous record holder by more than an hour, as Tolan played music and took phone calls while surrounded by 65,000 marine animals.
Six professional scuba divers were required to change Tolan's air oxygen tank 11 times throughout the broadcast.
When he finally resurfaced, Guinness World Records adjudicator Samer Khallouf presented him with a plaque commemorating the record.
"By breaking the Guinness World Records title for Longest LIVE Underwater Broadcast, we have captured exactly what A World Away From Your Every day at Atlantis is truly about," Atlantis representative Ravini Perera said. "Experiencing the unforgettable and seemingly impossible and seeing something that can be found nowhere else in the world."