BOO! at the Zoo

BOO! at the Zoo is Brookfield Zoo Chicago's family-friendly Halloween celebration, running from October 4 to October 31, 2025. This event offers a fang-tastic time with not-so-scary thrills, festive decorations, and fun for all ages. On weekdays, the event runs from 10:00 a.m. to 5:00 p.m., and on weekends, it extends to 6:00 p.m. Activities include trick-or-treating, a magician, and other exciting experiences. Visitors can wander through the zoo's festive paths, participate in Halloween-themed activities, and see their favorite animals in a whole new light. It's the perfect way to celebrate Halloween with the whole family. Please note, all activities are weather-dependent, and schedule/programming is subject to change.