In boxing, much like in serious relationships, nothing is official unless there’s a ring. Propose to bulk up with today’s Groupon: for $30, you get three cardio-boxing classes at 3rd Street Boxing Gym (a $60 value).

Former fighter and Golden Glove champion Paul Wade opened 3rd Street Boxing Gym in order to foster a city-based resurgence of his beloved sport. Taught by Paul and a supporting staff of fellow Golden Glove holders, cardio boxing revs hearts, melts calories, and frightens young punching bags into hiding seven days a week. One-hour workouts stoke fat-burning flames with a repertoire of jumping rope, drills, and shadow boxing alongside abdominal exercises and stretching routines. After attending a trio of classes, fledgling fighters will not only accrue ring-ready moves, but will also boost flexibility, strength, and the ability to move beyond small talk in conversations with George Foreman.

3rd Street Boxing Gym sets its sparring amid a gritty, industrial backdrop fully stocked for fighting. The club houses two full-size rings, a sea of punching bags, free weights, and a handful of cardio machines. For visual reinforcement of ring-learned lessons, the gym also hosts monthly Fight Nights, in which 3rd Street–trained fighters battle fairly matched opponents or revenge-seeking Bozo bags.