In the first episode in Huck Magazine's four-part documentary series "Journey from the Source" presented by Finlandia Vodka and the organization One Percent for the Planet, professional surfer and filmmaker Mikey DeTemple meets the Finnish champion freediver Antero Joki.

Outside the water, Antero doesn't really look like your average world-class athlete. Almost half a century, he's a little older than most champions. He's got asthma (he smoked for ten years), he's about 235 pounds and, despite the fact he's about to demonstrate for us one of the most intense sports in the world, there are no minders or agents or physios anywhere to be seen. Antero has just his fin bag, his dive buddy Johanna Nordblad (a record-breaker in her own right), and his trusty motorboat (which doesn't start when he pulls the choke). But in the water, Antero is otherworldly, gliding effortlessly through the icy water and disappearing into the deep. "It's incredible, this feeling of weightlessness," he tells me later, adding with a grin, "especially for a man of my size."