Six Flags México is a 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, and is the most visited theme park in Latin America with 2.8 million annual visitors. It was previously known as Reino Aventura when it was Mexican-owned and featured the orca whale Keiko (from the movie Free Willy) as its principal attraction.