Sprawling across 189 acres on Mission Bay, San Diego's popular amusement park features Shamu, the killer whale, in a splashy stadium show that often gets audience members wet. Other popular attractions include Dolphin Discovery, Penguin Encounter, Wild Arctic, and Haunted Lighthouse, a 4-D adventure with sharks and ghosts. Along with aquariums, tidepools and numerous kid-friendly exhibits, visitors enjoy fireworks, musicals and water rides like Shipwreck Rapids and Journey to Atlantis.