Fright Fest is an annual Halloween program at several Six Flags parks, and it runs on Fridays, Saturdays and Sundays, October 1 to October 30. Many attractions are still open, the shows are changed up with Halloween themes, and there’s trick or treating in Ghost Town. While the programming is kid-friendly during the daylight hours, it’s much scarier at night, with haunted houses, mazes, and mines. After 6 p.m., zombies are released into the park. Admission is not recommended for kids under 13.