section: SeaWorld Orlando
question: When did Orlando SeaWorld open?
article: SeaWorld
candidates:  Orlando. SeaWorld Orlando opened on December 15, 1973, and had crowds topping 5,400 on its opening day. "One Ocean", a new Shamu show which premiered April 22, 2011, is hosted here, along with "Clyde and Seamore Take Pirate Island", an adventure with two sea lions, and "Blue Horizons", the park's dolphin show. The park contains 3 roller coasters: Kraken, a floorless coaster based on the mythical sea creature, Manta, a coaster designed to simulate how manta rays move, and the Shamu Express, a coaster oriented to kids located in Shamu's Happy Harbor. It is also home to the original Journey to Atlantis Water Coaster. SeaWorld After Dark is SeaWorld Orlando's night program, featuring the fireworks show "Reflections", a sea lions show "Sea Lions Tonite" and Shamu show "Shamu Rocks".