Kickboxing is gaining popularity due to its high-energy sessions, full-body workout, and the rising threat of prizefighter kangaroo encounters. Prepare your body for physical feats and marsupial feet with today's Groupon: for $30, you get four kickboxing classes (a $60 value), a personal-training session (a $45 value), and a free pair of boxing gloves from iLoveKickboxing.com (a $105 total value). Redeem your Groupon at the Cambridge, Peabody, Randolph, North Easton, and Spencer locations.

Kickboxing classes deliver a knee to the face of fat, burning up to 860 calories an hour with the high-energy striking moves of martial arts and boxing. All four limbs get in on the bag-bludgeoning action at iLoveKickboxing as each class (a $15 value per class) provides a full-body workout that tones arm, leg, and tentacle muscles while tightening the body’s core and improving balance. Hitting the heavy bags won't skin your knuckles once you don the included boxing gloves, which also double as excellent spring-loaded props for re-creating Three Stooges gags. Class times and dates vary based on location. Click here for your location's schedule.

To make sure your flab-blasting techniques are working your cardio system and toning your skeletal musculature with peak efficiency, you'll get a 40-minute personal-training session (a $45 value). A talented instructor will spend some time giving one-on-one feedback that will refine your form and help you punch through calories and walls in style.

Though iLoveKickboxing.com sometimes features discounted prices online, this Groupon still offers the best deal available.