For $59, today's side deal gets you 30 days of unlimited access to the outdoor pool and tennis courts at the Gordon Jewish Community Center (a $158.33 value). This center—open to all religious affiliations—melds fitness and recreation with a staff of friendly faces to help seniors or young'uns add a few more spices to their racks of life spices. This Groupon expires on September 6 (Labor Day), and the 30 days of pool and tennis access begin on the first day of use.

The Gordon JCC's outdoor swimming pool, open from Memorial Day to Labor Day, is a watery, Olympic-size wonderland big enough to fit plenty of laps, synchronized swims, or Nessie babies. Bat butterflicticly across the water to master swimming's most difficult stroke, or hone your sidestroke while chopping water into confetti with a swift scissor kick. A game of tennis on the JCC's well-maintained courts will dry soggy socks and keep little-used racquets as lithe and limber as the day they were strung. The center's opening and closing hours are generous.