Six Flags México is an amusement park owned by Six Flags Inc. and the only Six Flags park operating in Latin America. It is located in the Tlalpan forest and borough, on the southern edge of Mexico City, Mexico. Six Flags México has become one of the most important theme parks in Mexico and the largest in Latin America. It was previously known as Reino Aventura and was a Mexican-owned and run theme park, during which time the orca whale Keiko (featured in the movie Free Willy) was its principal attraction.
Reino Aventura (Spanish for "Adventure Kingdom") opened its gates in 1982, and is ever since the largest theme park in Latin America. The park's mascot was a purple cartoon dragon named Cornelio. Since its opening, no new attractions were added, thus attendance dropped. In 1992 the park was closed for an extensive remodeling as well as adding new rides, opening once again on July 3, 1993, with the new moniker El Nuevo Reino Aventura (The New Adventure Kingdom) featuring new rides such as Río Salvaje (Wild River, a raft ride), Viaje Inesperado (Unexpected Trip, a motion simulator) and Roller Skater (a Vekoma Kiddie Coaster). In that same year, the feature film Free Willy was shot in the park. This attracted numerous animal rights organizations, which pressured the park to free the orca Keiko. After Keiko left, Cornelio the dragon became once again the Park's official mascot.
In 1999, Premier Parks bought Reino Aventura for an estimated $59 million. Under new administration, the park's name was officially changed to Six Flags. Twenty new attractions were added to the park, including Batman: The Ride, Medusa (a wooden roller coaster) and Kilauea. It opened its gates again on April 19, 2000 as Six Flags México.