Like bench-pressing Richard Simmons or reading an enemy's diet plan to a crowd, hula-hooping makes weight loss fun. Get a healthy, good-natured workout in with today’s Groupon: for $20, you get six classes at HulaFit (a $40 value) in Colonie.

HulaFit's certified instructors tone bodies with up-tempo beats and fun, whirling hula-hoop workouts. The low-impact, motivational classes meet twice a week and are open to human gyroscopes of any level; a spinning sensei will happily give primers to visitors who've never hula hooped before. During the one-hour classes, pupils will tone their arms, abs, backs, and legs—lowering blood pressure and increasing metabolism along the way. Booty shakers who don't own a hula hoop may borrow one from the studio or craft one from a whale's monocle.