Free, daytime Zoo fun for families!

9 a.m. to 4 p.m.
Saturdays & Sundays
Oct. 15-16 • Oct. 22-23 • Oct. 29-30, 2022

Halloweekends is not a trick-or-treating event.

Drop by for a weekend visit and let us see your family-friendly costumes. The too-cute-to-spook decorations throughout the Zoo will provide plenty of perfect photo ops. 

  • Pumpkin Stomp 'n' Chomp enrichment treats for the animals provided by Eckert's Country Store & Farms
  • Autumn-inspired menu selections
  • Unique, family-friendly Halloween decorations for photo opportunities
  • Zoo's daily schedule, exhibits and attractions (weather permitting)

Please check back to this page for more event details coming soon!


Parking & Directions

All-day parking ($15/vehicle) is available on the Zoo's North Lot on Government Drive and South Lot on Wells Drive. Limited street parking is available in Forest Park.

Hours & Prices

Detailed Directions

  • Our Zoo Values Safety

    Our Zoo follows all directions by the Department of Health for the City of St. Louis, as well as guidance from the Centers for Disease Control and Prevention (CDC). Visit this page prior to your visit for updated information.

    Halloween Costume Policy

    We welcome all visitors to get into the Halloween spirit and dress up for Boo at the Zoo and Halloweekends. Since the Zoo is a family-friendly place, we have policies in place ​for everyone's safety and enjoyment:

    • Family-friendly Halloween costumes are encouraged. Costume masks are not permitted for any age. (Costume masks are defined as non-protective masks intended for decorative/costume-only use.)
    • No face paint that completely conceals the face.
    • Scary costumes are not permitted.
    • Costume appropriateness is up to the discretion of Zoo security.

    Be sure to check this page prior to your visit for any changes to these policies.


  • $2 off the price of an Adventure Pass** for children ages 2 -12 in costume* with on-site purchase
  • 10% off any purchase at Safari Gift Shop and Treetop Shop

Exclusive Zoo Member Discounts

  • 20% off in open gift shops
  • $10 off an animal adoption package with plush toy for children ages 2-12 in costume (visit a Welcome Desk for details)

**Adventure Passes are not usable at Boo at the Zoo.

Ghoulishly Adorable T-shirt

These scary-good t-shirts are available in select Zoo gift shops and online. (Supplies are limited.) 

This deal is no joke: Find ghostly gifts at the Treetop Shop's Halloween Boo-tique — or stop by the Safari Shop, Candy Crossing or Shopasaurus for souvenirs — and get 10% off any purchase (20% off for Zoo members).

Join us nightly at Boo at the Zoo— 5 to 8:30 p.m. 
Oct. 14-30

The Zoo is your family's not-so-scary Halloween-celebration destination! Join us for a kid-friendly nighttime Halloween experience, Boo at the Zoo presented by SSM Health Cardinal Glennon Children's Hospital, filled with laughs and adventure. Children are encouraged to wear costumes. Boo at the Zoo is not a trick-or-treating experience. Admission ticket and advance reservation required.

More information

Candy Shopping Guide

Orangutans, bears and other animals are in danger due to unsustainable palm oil plantations, which destroy their forest homes. Palm oil can be found in many products — even Halloween candy. Use this shopping guide to find candy that uses sustainable palm oil.

Palm Oil Guide

Tarantula Adoption

Tarantulas are among the largest spiders. The red-kneed tarantula is a docile spider that lives in the deserts and scrublands of Mexico.

Adopt the red-kneed tarantula!


SSM Health Cardinal Glennon Children's Hospital
Mid America Chevy Dealers
Eckert's Country Store & Farms

To learn more about sponsorship opportunities for Halloweekends or other Zoo events, please contact