There's nothing fun about floundering in the pool while your friends splash like dolphins. Get your under-the-sea legs with the help of Gigglin' Marlin Divers when you pay $12 for a 30-minute swim lesson (a $25 value). With a staff of master instructors and scuba trainers, this upper Kirby business has the skills to teach every aspect of underwater frolicking from beginners and kids to more advanced skills for adults. For $20, get the fish's-eye view with a two-hour Discover Scuba class with a PADI instructor (regularly $50). Bring your own swimsuit, towel, and sense of adventure, and you'll be provided with the rest of the gear as you learn basic scuba skills before diving in. Or for $20, stretch your fins and get some aquatic exercise with five swimming passes to the on-site Junior Olympic pool (regularly $40). Gigglin' Marlin has a brand-new, 10,000-square-foot facility and a heated indoor pool, so you can save some clams while securing an underwater adventure. Want more? Check out Gigglin' Marlin Divers on Facebook.