Standing while paddling through class three rapids or surf waves targets all the major muscle groups in the body. Plus, you’ll be working on your core strength and stability. “I can't imagine a better way to train in the off-season,” says Gleich. “The skills translate seamlessly to skiing.”

Midway through the summer is a great time to try your SUP in the ocean. Then in the fall, stay out on the ocean or head inland towards the mountains and SUP at the nearest lake until the snow starts falling.

“SUP is an intense whole body workout—especially good for core,” says Caroline. “It's really taken my skiing to the next level by challenging my balance.”