Kings Island is a 364-acre amusement park located 24 miles northeast of Cincinnati in Mason, Ohio, United States. Owned and operated by Six Flags, the park was built by Taft Broadcasting and opened in 1972. It was part of a larger effort to move and expand Coney Island, a popular resort destination along the banks of the Ohio River that was prone to frequ…Kings Island is a 364-acre amusement park located 24 miles northeast of Cincinnati in Mason, Ohio, United States. Owned and operated by Six Flags, the park was built by Taft Broadcasting and opened in 1972. It was part of a larger effort to move and expand Coney Island, a popular resort destination along the banks of the Ohio River that was prone to frequent flooding. After more than $300 million in capital investments over the years, the park has grown to feature over a hundred attractions including fifteen roller coasters and a 33-acre water park.