A swimming prodigy in his younger days, Andy Newell, 29, still goes back to the water for workouts a couple times a month. "I always do open-water swimming because it's way more exciting," he says of one of his go-to aquatic activities. The others? Surfing and stand-up paddling.
Matt Liebsch, like any pro skier, is all about hammering the rollerski training, but this year, he's taken a slightly different approach. "It is important to keep training fun and diverse at times," he writes. That means 2 1/2-mile swims once a week, indoor cycling training and more. Liebsch explains why it works.