Being in shape can make you stand out in a crowd and can help you lift that crowd to safety once Yellowstone's super volcano blows. Get fit and defy nature with today's Groupon: for $30, you get a 30-day membership at The Athletic Club in Overland Park (a $63 value). Groupon holders who decide to become long-term members after their 30-day membership will also receive half off The Athletic Club’s $100 initiation fee.

The Athletic Club coaxes sweat from the pores of its patrons with a fully outfitted facility equipped with a 25-meter lap pool, weight training room, group fitness classes, and more. A 30-day membership begins with a workout orientation from one of The Athletic Club's experienced professional trainers who will guide neophyte exercisers through the club, highlighting amenities with a giant yellow marker. Appease inner athletes and couch potatoes simultaneously in the Cardio Theatre, which boasts more than 35 pieces of XM radio-enabled cardio equipment and 10 television sets for ocular pleasure. Membership also includes access to group fitness classes such as indoor yoga, cycling, and aerobics. Put webbed appendages to use in the climate-controlled, short-course lap pool before rewarding muscles in a calming steam room, hot tub, or cold-dip. Rowing machines are also available, but not permitted in the pool.

A full-time cleaning staff keeps the club in pristine condition to allow chlorine-soaked pompadours to be styled on the polished floors. Though not included with today's Groupon, guests can refresh themselves after a hard workout in the sun-sprayed restaurant and café that features a full menu of specialty beers, appetizers, wraps, and sandwiches.