Boo at the Zoo

Families and kids of all ages can enjoy festive decorations, entertainers, many of your favorite Zoo exhibits and lots more at the Saint Louis Zoo's nighttime, non-scary Halloween experience Boo at the Zoo!

Boo at the Zoo is a long-time St. Louis family favorite, with fun, spellbinding decorations and great photo opportunities, spooktacular entertainment as actors bring the decorated areas to life, interaction with the animals, fun at the 4-D Theater, Conservation Carousel, and more. New in 2026: The Primate House will be open for Boo at the Zoo until 7:30 p.m.

At Boo at the Zoo you can visit the stingrays at the Caribbean Cove, slither into the Charles H. Hoessle Herpetarium and the Bayer Insectarium, as well as ride the Zooline railroad, see the Wild Explorer VR Experience, visit the Dinoroarus displays and more.

And don't forget the special food & drink menus and souvenir T-shirts!

Please note: this is not a trick-or-treating event. Costumes are encouraged!

Boo at the Zoo is happening on select nights from 5 to 8:30 p.m., October 9-30, 2026, at the Saint Louis Zoo. Tickets are available now.

October 12 is Sensory Friendly Night for guests with sensory sensitivities. This night includes sensory maps, quiet areas, and trained Zoo staff to assist individuals with sensory sensitivities.

Family-friendly costumes are encouraged! Scary costumes are not permitted. Costume masks and face paint/makeup that conceals the whole face are not permitted on guests 14 and older. 

Get tickets at stlzoo.org