St. Marys Aquatic Center. If the heat has you, and the kids are itching to get wet, head to this full-service water park on the mainland, where you can get an inner tube and relax floating down the Continuous River, hurtle down Splash Mountain, or corkscrew yourself silly sliding down the Orange Crush. 301 Herb Bauer Dr., St. Marys, GA, 31558. 912/673–8118.
www.funatsmac.com. $9.95. Summer daily; hrs vary.