Boo at the Zoo

Thanks, Kelly for your great post! Here's another idea:

Boo at the Zoo
October 25 - 26, 9 a.m. – 5 p.m.

Denver Zoo’s 24th annual “Boo at the Zoo” steadily approaches so get your costumes ready. This year’s theme encourages children to be a hero for the planet and dress up as their favorite superhero while they learn about several ways they can help the environment. Trick-or-treaters visiting more than 30 trick-or-treat stations can enjoy close encounters with the creepy kind, viewing vampire bats, reptiles, spiders and Denver Zoo’s other creatures. Activities free with admission.