Boo At The Zoo

The annual Boo at the Zoo offers more than 20 trick-or-treat stations, creepy crawly animal demonstrations and exciting family-friendly entertainment under the canopy of Denver Zoo’s beautiful fall foliage. Activities are free with zoo admission. Boo After Dark on Oct. 28 and 29 offers visitors a nighttime trick-or-treating experience. Tickets are $17 for adults and $12 for children; 2 and under are free.