Kings Island hosts Halloween Haunt, a popular seasonal event transforming the park into a scream-filled nightmare with scare mazes, zones, live entertainment, and hundreds of costumed monsters. While the park offers a professional Halloween event, some visitors and employees also report experiencing paranormal activity, particularly the legend of a young girl in a blue dress, a figure potentially connected to the park's historical land before its construction. A recurring legend involves a young girl, often described as being four feet tall and wearing a 19th-century blue dress. Stories suggest she may have drowned on the property before the park was built, or died during a cholera outbreak. She is said to appear in various areas of the park, including the parking lot, admissions area, and near the old international restaurant, sometimes seen by both visitors and employees. The park's land has a historical background with a powder company that supplied munitions during the Civil War.