Jacques Cousteau's grandson Fabien plans month underwater

Fabien Cousteau, grandson of Jacques, is planning to spend 31 days underwater, beating his grandfather's record by one day while also celebrating Jacques Cousteau's research.
From NPR:

The underwater lab that's serving as the team's temporary home is called Aquarius Reef Base. The 81-ton steel structure is located 63 feet beneath the water's surface, according to the Mission 31 website. At that depth, Reuters reports, the water pressure is almost three times the pressure at the surface....
According to CNET, Cousteau will be accompanied by two technicians, who will be staying with him for the duration of the project. Two cameramen and four scientists also will be involved, but the lab only has room for three of them at a time; they will swap out halfway through.
The scientists will be observing the effects of climate change and pollution on the reefs around the Florida Keys. While the length of their stay is a bit of a publicity stunt, the ability to spend days or weeks underwater does have real value to scientists...

"Jacques Cousteau's Grandson Plans To Spend A Month Underwater"