Calgary Zoo Posts ZooBOO Hours and Costume Rules for Halloween Weekend

Published October 25, 2026.

Calgary, Alberta | Event scheduled October 31–November 1, 2026

The Wilder Institute's Calgary Zoo has scheduled ZooBOO for Saturday, October 31, and Sunday, November 1, 2026, from 9 a.m. to 5:30 p.m. each day. Its event page says the Halloween activities are included with day admission or membership; this is a daytime visit, not a report of festivities already held.

The program lists a stamp safari, a shared monster mural and treat stations for children. Adults may dress up, but the zoo prohibits adult full-body animal costumes, mascot-style helmets and inflatable outfits. Costumes unsuitable for a family setting, or realistic ones raising security or animal-welfare concerns, are also excluded.

These limits are worth checking before choosing an outfit. The event page also carries a West Gate closure notice linked to construction near Imagine Asia. Families should check that page again before leaving, rather than assume a familiar entrance will be open.

Beyond the Headlines

Save the zoo’s safety contact before the visit

A crowded family outing makes the zoo's existing lost-child procedure useful information. Its Security, Health & Safety page directs visitors reporting a lost child or emergency to call Security at 403-232-9341. If possible, it asks them to stay where they are so a security team member can come to them.

The same number is the contact for something dropped into an animal habitat or another out-of-reach area. The zoo asks for the visitor's name, contact information and a description of the item. Reporting it gives staff the information needed to handle retrieval; reaching into a habitat is not part of that procedure.

The zoo locates Lost and Found at the Security office south of the ENMAX Conservatory, just off 12th Street SE. Its safety page also says a first aid station is available, without identifying that station's location in the information checked here. These are the venue's standing safety arrangements, not special ZooBOO services or a guarantee that every activity will operate as advertised. Keep the official event and safety pages available when planning the visit.

Sources & further reading

• Calgary Zoo — October events announcement: initial ZooBOO schedule, retained as background.
• Calgary Zoo — ZooBOO event page: 2026 dates, admission, costumes and West Gate notice.
• Wikimedia Commons — Image record: archival photograph identity, authorship and license.
• Calgary Zoo — Security, Health & Safety: emergency, lost-child and retrieval procedures.