Hours: Amusement park open Sun.-Fri. at 11, Sat. at 10, early June-late Aug.; Sat. at 10, Sun. at 11 (also Memorial Day and Labor Day), early Apr.-early June and late Aug.-late Sept. Lagoon A Beach open daily at 11, Memorial Day weekend to mid-Sept. (weather permitting). Frightmares takes place at the amusement park late Sept.-late Oct.; phone for schedule. Phone ahead to confirm schedule and closing times for both amusement and water parks.