Before ocean surfing, thrill seekers were forced to sneak onto rock concert stages and leap board-first onto waves of angry humans. Learn to ride waves that can’t punch you in the head in retaliation with today's Groupon: for $20, you get two half-hour sessions on the indoor surf-wave machine at Adrenalina, located in Plano (a $40 value). This Groupon also includes a 25 percent discount on retail products at the sports shop, which was established by Adrenalina TV show creator Zalman Lekach.
A sanctuary for outdoor enthusiasts and extreme sportsmen, Adrenalina's adventure cave is stocked with sports gear and the FlowRider, a wave machine that churns out a never-ending sea swell customizable to each surfer's abilities. Every 30-minute wave session is limited to eight participants, includes a surfboard or body board, and is led by an instructor who ensures safety and leads the team in reenacting scenes from Point Break. The FlowRider spews its perpetual waves across a padded surface, so falls won't result in skinned knees or shattered dreams.
Aqua Shop is in the business of defying physics; inside, water flows uphill. The FlowRider wave machine—an attraction usually reserved for theme parks or cruise ships—projects a frothy current blasted up a slanted ramp, emulating a wave for surfers, wakeboarders, and ambitious belly floppers to catch anytime, regardless of tide conditions.