A “bait ball” is a swarm of fish that has formed roughly into the shape of a sphere. It’s a defensive maneuver that pipsqueak sea creatures employ to dance away from the jaws of hungry predators.
If you’re a human, bait balls amount to a stunning natural wonder. This video, captured at Australia’s Ningaloo Reef on July 11, delivers a diver’s-eye-view of what it’s like to swim through one. And hey, check it out: it’s pretty trippy stuff.
There’s no sound, but you don’t really need it. Just pop on some Pink Floyd and lean back as you marvel at the magic that nature provides.