A playground can be the site of a first birthday party, a first transatlantic paper-airplane flight, or a first doctoral dissertation on the geothermal impact of teeter-totters. Make a scientific breakthrough while breathlessly jumping with today's Groupon: for $7, you get one pass to be used for either the open bounce or the family bounce night at BounceU in College Point (a $14.14 value, including tax). Use this Groupon for vertical enjoyment at the College Point location. Sprightly bouncers must wear socks in order to play. Adults and children under 2 years old enter for free if accompanied by a paying child.

BounceU transports kids to an inflatable, climate-controlled playground, where they can bounce from side to side in a safe, secure environment. Your pass is valid toward any open bounce session scheduled on Thursday afternoons and Saturday mornings and family bounce night every Wednesday from 6 p.m. to 8 p.m. Kids can imagine they're synchronized leapers in Michael Flatley's Riverbounce as they carom around the inflatable stadium, expending energy with every leap. Adults are welcome to act like 8-year-olds and join the vivacious youngsters in the playground, where they can duel with the foam-shooting equipment or mount the climbing structures.

The attentive BounceU staff will monitor the rebounding playground at all times, ensuring that the facilities are safe and clean. On family bounce night, parents can order a large pizza and a two-liter of soda (not included in this Groupon) so that the kids can spend dinner imagining they're Sir Lancelot and his steed invading the dominion of trampolines.

Must fill out a waiver to bounce. If under age 18, a parent or guardian must sign waiver.