Most sports grow out of a simple formula—ball plus stick, ball plus kick, or car plus explosion. Partake of a new variation with today’s Groupon: for $29, you get four weeks of beach-tennis intro classes for adults at Beach Tennis USA (a $99 value). This Groupon is valid at either the R Place Pub location or the Baxter Jacks location. Classes meet once a week.

The founders of Beach Tennis USA imported the volleyball-and-tennis hybrid sport from Aruba in 2005, bringing Americans of all ages and athletic abilities a fresh twist on beach-bound recreation. During the two-hour intro classes, instructors teach students how to bump, smack, or teleport de-pressurized tennis balls over lowered beach-volleyball type nets using nothing but stringless paddles. Like in volleyball and tennis, each team desperately attempts to keep the ball from hitting the ground on their side while using brute force and surreptitious bribery to convince the fast-moving orb to strike the opposing team's sandy surface. The gurus will impart valuable arm-swinging and sand-diving techniques for the first 30 minutes before letting pupils compete in match play for the remaining hour and a half.