Join us nightly:
5 to 8:30 p.m 
Oct. 15-31, 2021

The Zoo is your family's not-so-scary Halloween-celebration destination!

Boo at the Zoo is not a trick-or-treating event.

  • New this year: Enjoy Dinoroarus in the glorious (and non-gory-ous) glow of Halloween decorations, teeming with opportunities to snap a dino-themed selfie!
  • Be spellbound by fabulous decorations throughout the Zoo, including Skeleton Soiree, Monster Mash, Flutter Forest, Pirate Pointe and Halloween Town.
  • See strolling entertainers and stage shows.
  • Take a rollicking ride on the Zooline Railroad and go for a spin on the Conservation Carousel.
  • Savor special fall-themed menu items, available for purchase.
  • Jump-start your holiday shopping with a visit to our open gift shops.


  • Advance online tickets required. Tickets go on sale Monday, Sept. 27. Check back to this page for ticket links.

    Nightly: 5 to 8:30 p.m. Oct. 15–31, 2021

    Ticket prices (ages 2+)
    • Oct. 15-17 — $9.95/Zoo Member; $10.95/non-member
    • Oct. 18-21 — $8.95/Zoo Member; $9.95/non-member
    • Oct. 22-28 — $9.95/Zoo Member; $10.95/non-member
    • Oct. 29-31 — $10.95/Zoo Member; $11.95/non-member 

    Free for children under age 2. Limited capacity. Tickets are not available at the door.

    Free Parking 

    Park for free on the Zoo North or South parking lots during the event. See detailed directions.

    Groups of 15 or More

    Groups of 15 or more may receive a discount rate on tickets when purchased and paid for at least 7-days prior to your visit date. Please contact the Group Ticket Desk at (314) 646-4781 from 9 a.m. to 2 p.m. Monday through Friday. Tickets are not available at the door and must be purchased in advance.

    • Two admission time slots are available for each evening of Boo at the Zoo. You may choose between the following when purchasing your ticket online:
      • 5 to 6:30 p.m.
      • 6:30 to 8 p.m. (Event ends at 8:30 p.m. Last admittance is at 8 p.m.)
    • You must arrive at the Zoo within your reserved time slot. Once at the event, you may stay as long as you wish, or until the event ends at 8:30 p.m.
    • Guests will have their reserved ticket scanned from their print-at-home ticket or scanned digitally from their smartphone. Both Zoo entrances are open.
    • Tickets are not available at the door.
    • Tickets are valid only for day and time noted.
    • Tickets are not refundable* or transferable.
    • Limited capacity.
    • In the event of a cancellation due to weather or other unforeseen circumstances, the Zoo will update its website and social media by 3 p.m. the day of the event.
      • *If you have tickets for a canceled event, you will receive a full refund on the credit or debit card used to purchase. The Zoo will do its best to issue refunds in a timely manner.
      • *At this time, we are not able to exchange tickets.
    • Zoo reservations made for normal operating hours do not count as entry to the event.
    • The Zoo will close to the public at 4 p.m. each night of Boo at the Zoo. (All pathways, restaurants, exhibits and attractions will no longer be open.) Doors will re-open at 5 p.m. for the event. Zoo visitors who are planning to attend Boo at the Zoo will need to exit the Zoo and have their Boo at the Zoo tickets scanned for re-entry starting at 5 p.m.
    • The Zoo's wheelchair, stroller and ECV rental fees apply for this event.
  • Safety

    • This is primarily an outdoor event.
    • Masks/face coverings are required indoors for all guests age five and older, including those who are vaccinated.
    • Guests age five and older not fully vaccinated are required to wear masks/face coverings both indoors and outdoors.
    • Subject to change based on recommendations and guidelines from the St. Louis City Department of Health and CDC

    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.

Animals & Attractions

Say howdy to the turtles, tortoises, frogs, toads, snakes and lizards at the Herpetarium — they're always ready for Halloween guests!

For a little more hocus-pocus, the creepy, crawling creatures at the Insectarium just can't wait to bug you.

Take a step back in time and walk among the giants at Dinoroarus.

Go 'round on the Conservation Carousel.

Ride the nighttime Zooline Railroad.
($3.95/Zoo Members; $4.95/non-member)
Zooline Railroad schedule is subject to change and it may not operate every night of the event 

Please note, these are the only animal exhibits and attractions open at night during the event.

Free admission to attractions, except Zooline Railroad.


Get pumped for some spooktacular entertainment!

Stage Shows: 5:30-6 p.m. Friday-Sunday at Sea Lion Arena. Free. After the show, the entertainers roam the Zoo until 8 p.m.

Roaming Entertainment: 5-8 p.m. Monday-Thursday

  • Oct. 15 — Juggling Jeff (stage)
  • Oct. 16 — Oh My Gosh Josh (stage)
  • Oct. 17— Enchanted Events Character Singalong (stage)
  • Monday, Oct. 18 — Stilt Walker
  • Tuesday, Oct. 19 —Juggler
  • Wednesday, Oct. 20 — Magician
  • Thursday, Oct. 21 — Stilt Walker
  • Oct. 22 — Juggling Jeff (stage)
  • Oct. 23 — Oh My Gosh Josh (stage)
  • Oct. 24 — Enchanted Events (stage)
  • Oct. 25 — Stilt Walker
  • Oct. 26 — Juggler
  • Oct. 27 — Magician
  • Oct. 28 — Multi-skilled performer
  • Oct. 29 — Oh My Gosh Josh (stage)
  • Oct. 30 — Juggling Jeff (stage)
  • Oct. 31— Oh My Gosh Josh (stage)

Entertainment varies nightly. Shows do not include animals.

Food and Souvenirs

  • Taste what's brewing at Lakeside Cafe, Safari Grill, Tundra Treats, Carousel Cafe, Ray's Snack Shack, Sweet & Salty Co. and River Camp Cafe.
  • Visit Candy Crossing for Halloween treats. 
  • Need a "BOO-st"? Grab a fall-flavored drink from Starbucks! Enjoy your refreshments under the moonlight on our deck, overlooking the lake.
  • This deal is no joke: Find ghostly gifts at the Treetop Shop's Halloween Boo-tique — or stop by the Safari Shop for souvenirs — and get 10% off any purchase (20% off for Zoo members).

Otterly Adorable T-shirt

These North American river otters are ready to shoot some hoops! This T-shirt is a slam dunk. You really otter get one today! Purchase online or at select Zoo gift shops. (Supplies are limited.)

Purchase T-shirt

Need a Mask?

The Zoo has animal and Halloween-themed masks available for purchase online and at Zoo gift shops. (While supplies last.) 

Halloweekends presented by SSM Health Cardinal Glennon Children's Hospital

9 a.m. to 4 p.m.
Saturdays and Sundays
Oct.16-17, Oct. 23-24, Oct. 30-31

The Zoo's too-cute-to-spook decorations provide the perfect backdrop to make a weekend visit in family-friendly costumes! See the animals receive special pumpkin enrichment as you partake in our autumn-inspired menu offerings. Free.

See More


SSM Health Cardinal Glennon Children’s Hospital
Wells Fargo
Mid America Chevy Dealers
Prairie Farms Dairy
Eckert's Country Store & Farms

Media Partner
iHeart Radio

To learn more about sponsorship opportunities for Boo at the Zoo or other Zoo special events, please contact

Visiting From Out of Town?

Looking for a place to stay while visiting the Zoo? Check out our hotel partners during your stay in St. Louis.

Hotel Partners

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

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