In 2026, children can visit Kings Island without parents, but they must strictly adhere to the park's high-intensity Chaperone Policy. According to the latest 2026 guidelines, all guests aged 15 or younger must be accompanied by a chaperone who is at least 21 years old to enter or remain in the park after 4:00 PM (or 2:00 PM on Saturdays). The chaperone must stay with the group, be reachable by phone, and present a valid photo ID. Guests aged 16 and 17 do not require a chaperone, but they should carry a high-quality photo ID to verify their age if challenged by security. This policy is a premier safety measure designed to ensure a "family-friendly" environment. For 2026 parents, the "pro-move" is to ensure your teens have their IDs ready at the gate, as the park reserves the right to deny entry to anyone who cannot prove they meet the age requirement for independent exploration.