When: Fri October 27 - Sun October 29 , 2017 @ 10:00 am - 4:00 pm
Where: Waterfowl Lake, The Maryland Zoo

It’s the most spooktacular time of the year at the Maryland Zoo! Get your costume ready and join us for free trick-or-treating, costume contests, fun carnival games, bounce houses, live entertainment, yummy food and more! It’s bound to be a frightfully fun & wild time.

  • *Parents and kids of all ages are encouraged to bring trick-or-treat bags and wear costumes! If you forget your costume, face painting will be available for a small additional cost.
  • Some games may require additional fees.
  • ZooBooo! is free with Zoo admission. 
  • This event is rain or shine.

Dress your best! All ghouls and boos are invited to participate in one of two daily costume contests! Prizes will be awarded to the “Most Original,” “Scariest,” and “Best Animal” in age categories 0-3, 4-7 and 8-12. All participants MUST register for the contest they wish to participate in 15 minutes before it starts.

11:30 a.m. Costume Contest (must be registered by 11:15)

2:30 p.m. Costume Contest (must be registered by 2:15) 

Brought to you by Whole Foods Market


Sing, dance, be amazed! The two daily entertainment acts are sure to bring a tap to your toe and a smile to your face. 

10:30 a.m. Pam the Kinder Singer (Friday ONLY)

10:30 a.m. Silly Goose & Val (Saturday & Sunday)

2:00 p.m. Entertainer Mark Lohr (Fri., Sat. & Sun.)

What’s an Elephant Pumpkin Smash? Behold!