Boo at the Zoo presented by Delta Dental of Idaho

Saturday, October 24 & Sunday, October 25, 2026 10AM - 5PM, last admission at 4PM The best family Halloween event in town! Trick or treat candy stations, costume contests for all ages, face painting, vendors, special Halloween-themed treats for the zoo animals, and more await the entire family on Saturday, October 24 and Sunday, October 25 for Boo at the Zoo, presented by Delta Dental of Idaho. Normal admissions prices apply. Free for current Zoo Boise members. Last admission is at 4PM on both days. We will have two gates open for the event: the main entrance and a secondary entry/exit on the northeast side of the zoo near the Julia Davis Park tennis courts. (See the map below.) Event Map and Animal Enrichment Schedules: COMING SOON! Costume Contest Schedule: 10:30AM 2 years & under 11:15AM 3-5 years 12:00PM 6-9 years 1:30PM 10 & up 2:00PM Family / Multi-person groups 2:30PM 4 years & under 3:00PM 5-11 years 3:30PM 12 & up 4:00PM All ages (Both Saturday and Sunday) Click to read Boo at the Zoo costume regulations. Presented by: Sponsored by: