Six Flags México is an amusement park located in the Tlalpan forest and borough, on the southern edge of Mexico City, Mexico. It is owned and operated by Six Flags Inc. and the only Six Flags park operating in Latin America. It is the most visited theme park in Latin America with 2.5 million annual visitors. It was previously known as Reino Aventura and was a Mexican-owned and run theme park; the orca whale Keiko (featured in the movie Free Willy) was then its principal attraction.