Join us this October for a spook-tacular trick-or-treating adventure at Butterfly Pavilion’s annual Halloween extravaganza—Bug-A-Boo! 

A cherished Halloween tradition, Bug-A-Boo welcomes families from across Colorado to enjoy a safe, indoor, and stress-free trick-or-treating experience. Children of all ages are invited to come in costume during the last two weekends of October any time during regular visiting hours, 9:00 a.m. – 5:00 p.m. and discover the magic of the invertebrate world while visiting candy and toy stations throughout the zoo. 

From toddlers to teenagers, there’s something for everyone at Butterfly Pavilion’s Bug-A-Boo! Experience the captivating world of spiders as you explore arachnid, butterfly, and aquatic exhibits. 

And don’t miss Spider Zone—an exotic enclosure filled with hundreds of free-roaming orb-weaving spiders. Here, guests can walk among these incredible arachnids with no glass and no barriers—just you and hundreds of magnificent orb weavers spinning their intricate webs all around.  

Bug-A-Boo isn’t just about trick-or-treating; it’s an opportunity to blend Halloween fun with an educational twist! Along the way, your family will discover fascinating spiders and learn about their ecological and cultural importance. 

Make memories, discover something new, and experience Halloween like never before at Bug-A-Boo! 

Bug-A-Boo Dates: 

Saturday, Oct 18 & Sunday, Oct 19, 9:00 a.m. – 5:00 p.m.

Saturday, Oct 25 & Sunday, Oct 26, 9:00 a.m. – 5:00 p.m.

After Hours Halloween – Friday, October 31, 5:00 – 7:00 p.m. 

Thank you to our Bug-A-Boo Sponsors