Boo At The Zoo 2025 St Louis 2025. The saint louis zoo’s nighttime halloween experience, boo at the zoo, features festive decorations, entertaining performers and special food and drink menus,. Boo at the zoo transforms the zoo into a festive wonderland from mid to late october, featuring decorations,.

Search for events by keyword. Families of all ages can enjoy festive decorations, entertainers, special food and drink menus and more at the saint louis zoo’s.