With warmer weather approaching, many people begin new exercise regimes, readying their muscles for special swimsuits and unearthing themselves when beach pranksters leave them buried in sand. Boost your digging prowess with today's Groupon: for $30, you get five fitness class day passes at Peak Sports Club in Loves Park (a $75 value).

Peak Sports Club forges ironclad muscle and melts away extra pounds with an array of supportive group fitness classes. Health hunters of all experience levels can take advantage of the many scheduled classes, ranging from spin sessions and aqua aerobics to Les Mills classes such as the barbell intensive Bodypump, cardio crazy Bodyjam, and naptime-enforcing Bodypillow. Peak Sports Club also hosts a fourth-degree black belt Korean master to teach tae kwon do sweat sessions at various levels, accommodating both novices and advanced martial artists who can already kick through a half-inch board or bully's reinforced ego.

Peak Sports Club focuses on making fitness fun for the entire family, boasting classes open to children and a child-care facility so parents can keep their nurslings safe and entertained while sneaking in a workout ($10 flat rate).