Diver and eco-activist Scott Cassell aims to set a world record by diving from Catalina Island to Los Angeles in under 24 hours, all of which, thanks to a rebreather, would be spent underwater.

He also plans to wear “an acoustic shark attractor” to attract as many sharks as possible—far fewer, sadly, than there would have been 10 or 20 years ago.

Very cool. Not sure I could do 24 hours underwater, though.

In other news, Filipinos caught a 21-foot saltwater crocodile. Big!