Mammoth Mountain in California typically has a long snow season, which is why Gus trains there with the U.S. Ski Team. It's also a lava dome with a ton of hydrothermal activity in the area. "There's a natural hot springs just outside of town, on your way to the airport, that's definitely a must-do," says Kenworthy. Any time of year, you'll find several different pools with a variety of temperatures in which to soak your bones after a day of mountain and watersports in the Sierra Nevada Mountain Range.
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