From the policy:
Guests aged 17 years and under must be accompanied by an adult chaperone beginning at 4:00 p.m.
An adult chaperone is a parent, guardian, or other supervising adult at least 21 years of age. Adult chaperones must be able to provide valid ID, including a photograph and date of birth.
Each adult chaperone must be present at the time of entry and remain within the park for the duration of their party’s visit.
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