Fabien Cousteau has some big shoes to fill. Or rather, big fins. As the eldest grandchild of Jacques-Yves Cousteau, Fabien has inherited the family love of the ocean and also the savviness to know what will get attention. On June 1, Cousteau is embarking on Mission 31, an ambitious project that will have him living for an entire month underwater. No, he and his small team of aquanauts won’t be blowing bubbles and cuddling in wetsuits for 31 days. They’ll be living in the Aquarius underwater habitat off the coast of Florida, a scientific research facility 65 feet down that is tethered to a surface support barge for air and electricity.
Mission 31 has several goals. Cousteau hopes to use the project to study the coral reef up close, gather data, and educate schoolchildren (and anyone else who will listen) in real time via an uplink from Aquarius. The big picture? Trying to wake up a world that is largely apathetic to the state of the oceans. It’s an audacious plan, and if he pulls it off, he’ll beat a 30-day underwater record set by his grandfather in Conshelf II back in 1963. He certainly had our attention when we caught up with him several weeks ago to talk about preparing for the project, the challenges he expects to face and whether or not he eats seafood.

Q: What’s the latest news with Mission 31?
A: We were originally scheduled for November into December. If memory serves, beginning of November to mid-November was training and then splashdown was to be mid-November through mid-December. We got so late because of the government shutdown and all the uncertainties that we’ve faced around that, including the permitting process and everything else that you have to go to do this sort of thing. It’s like having to reset the clock like NASA does when they abort a launch. It’s actually not coincidental that I’m using that as an example. That really is the complexity with which we have to start it all back up from square one, unfortunately, once we stop the countdown.
We wanted to avoid having to do that again, hence why we didn’t do the dive in January, which was the next logical month. Then we needed to avoid the Christmas season and the really terrible weather where the habitat’s located during February and March into early April. Those months have very high wind that’s not conducive for our surface support as well as visibility and all sorts of other things.
Q: I’m guessing there are organizations coming and going from the habitat regularly. Do you have to schedule time in between other projects that are going on there?