Rick Rubin—the cofounder of Def Jam Records and the producer behind hit albums by the Red Hot Chili Peppers, Beastie Boys, and Lady Gaga—lost 130 pounds with a combination of ice baths and outdoor recreation. It’s where some founders of CrossFit explore new routines, and, most important, it’s where Hamilton spends his off-season before chasing big waves throughout the winter.
