Sarah Ponn, 24
Cofounder and fitness director of SurfSET Fitness, which offers a high-intensity workout done on mock surfboards to mimic the motion of wave riding. Currently in New York, with locations in the Hamptons and Santa Monica set to open this month. (surfsetfitness.com)
Typical Workout: I’m training SurfSET instructors now, but I still hike, swim, and surf in the ocean when I get the chance.
Best Body Part: My triceps—it’s that pulling motion in a lot of the swimming and climbing I do.
Fitness Challenge: Endurance. I’m just not a runner. I like short, fast, high-intensity workouts.
Guilty Pleasure: Dark-chocolate-covered pretzels.
Must-Have Accessory: I love my Polar heart-rate-monitor watch.
Body Beautiful: Cameron Diaz. She’s athletic without being boyish looking.
Photography by Patric Shaw