This class takes the basic principles of Pilates, designed to tone and shape legs, abs and back while improving posture and balance, and translates them to the pool. The water makes it harder to stabilize your core and forces you to really work your muscles—but it also keeps you cool, says Lisa Gibson, a master Poolates instructor who holds classes for teachers around the country.
DIY and Stay Cool: The Standing Star is a key Poolates balance and toning move, Gibson says. In chest-deep water, stand in the Pilates "V" stance, with your legs slightly turned out from the hips, arms extended out to the sides and floating on top of the water and shoulders away from your ears. Inhale, lift the left leg, flex the left foot and allow the leg to rise as your chest and torso extend to the right (the right arm leads, and you will bend at the waist). Exhale and lower the left leg, returning to your starting position. Repeat on the other side. Do three sets.