Calling all ghosts and witches to join us for "Boo at the Zoo" and enjoy Oakland Zoo's Halloween festivities, Saturdays and Sundays starting on October 17 through November 1.

Calling all ghosts, goblins, and witches - join us for Boo at the Zoo!

Grab a program as you enter the Zoo and follow the clues on our self-guided scavenger hunt to trick-or-treat for special edition animal Trading Cards throughout the Zoo. Upon completing your scavenger hunt, collect a bonus Trading Card and a fair trade organic chocolate from our presenting sponsor TCHO chocolate*.

Remember to dress in costume (no inflatable costumes - they can scare the Zoo animals) when you visit. Win great prizes at our in-person costume contest held each day of Boo at the Zoo at 12 p.m. in the Wildlife Theater located in the Wayne & Gladys Valley Children's Zoo or tag #OaklandZoo on social media to enter our virtual costume contest!

Come and celebrate Halloween at Oakland Zoo this year!

*Candy may contain tree nuts.