COAL VALLEY, ILLINOIS (October 6, 2025) BOO! It is Niabi Zoo’s annual celebration of Merry, not Scary Halloween Festivities. Our many generous local businesses will provide free treats to our Zoo guests. Wear your costumes, bring a smile, and enjoy the many annual Boo at the Zoo activities.
Boo at the Zoo Activity Hours | 10AM-3PM
Zoo Admission Hours | 10AM-5PM, Last entry @ 4PM
- Niabi Zoo Members and Funbundle Members get Free admission to this event.
- Please note that we cannot provide a separate entry line for members due to the high volume of guests visiting during Boo at the Zoo. Guests will be admitted on a first-come, first-served basis. Please have your membership card and ID ready if you are a member.
- If your membership has expired, click the button below to renew it today!
- Costumes are welcome, but they aren't required. Adults may wear costumes, but we ask that they be family-friendly (not scary). Since this event caters to small children, adults may NOT wear costume masks that cover the ENTIRE face.
