Two young anime-style girls in Halloween costumes, one dressed as a witch and the other in a witch hat, are holding jack-o'-lanterns in a greenhouse filled with monarch butterflies.
family_friendly

Artistic rendering – Event may differ

Bug-A-Boo at Butterfly Pavilion

Walk among hundreds of free-roaming orb-weaving spiders.

About

Join the annual Bug-A-Boo Halloween celebration at Butterfly Pavilion for a spook-tacular trick-or-treating adventure. This family-friendly event offers a safe, indoor experience where children can explore the wonders of the invertebrate world, discover fascinating spiders, and enjoy festive treats. Don't miss the unique opportunity to walk among hundreds of orb-weaving spiders in the captivating Spider Zone.

Our Take

Scare Factor

👻 (1/5)

Family Friendly

👶 👶 👶 👶 👶 (5/5)

Best For

Families with young children

Vibe

Festive, educational, spooky-fun

Energy Level

Low to medium

Budget

$

Photo Friendly

High

Weather Sensitivity

Low (indoor event)

Special Events & Promotions

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

Featured Video

Tags

trick or treatfamily friendlyhalloween festivalpumpkin patchcommunity eventkids gamesface paintinghalloween candy

Always check the official website for the most current information.

We've done our best to keep details up-to-date, but event schedules, prices, and policies can change. For the latest updates, please visit the official website or contact the organizers directly.

Location

6252 W. 104th Avenue
Westminster, CO
80020

Event Details

Pricing

$17.45 (Adult), $12.45 (Child 2-12), $15.45 (Senior 65+), Free (Child Under 2, Members)

Duration

9 hours

Ages

All ages

Timed Entry

Yes

Organizer

Butterfly Pavilion

Practical Information

Pet Policy

No pets allowed

Food & Drink

Snack options available (dogs, burgers, chips, soda - overpriced and outside only).

Quick Actions

Tips & Advice

  • Arrive early, especially on weekends, to maximize your trick-or-treating time and avoid the largest crowds.
  • Encourage children to wear costumes that are comfortable for indoor exploration and easy to move around in.
  • Take advantage of the educational opportunities; ask staff about the spiders and other invertebrates you encounter.
  • Check the Butterfly Pavilion's website for any specific costume guidelines or restrictions before your visit.
  • Consider visiting on a weekday if possible for a less crowded experience, especially with younger children.

Frequently Asked Questions

What are the specific dates and times for Bug-A-Boo?

Bug-A-Boo takes place on the last two weekends of October: October 18-19 and October 25-26, from 9:00 a.m. to 5:00 p.m. There is also an 'After Hours Halloween' event on Friday, October 31, from 5:00 p.m. to 7:00 p.m.

What is the Spider Zone?

The Spider Zone is an exciting, exotic enclosure where guests can walk among hundreds of free-roaming orb-weaving spiders without glass barriers, offering a unique and immersive experience.

Are there any special ticket requirements?

Tickets are only valid for the date selected, and front doors lock at 4:15 p.m. Children under 2 require reserved tickets. Discounted ticket holders must present valid ID or membership cards.

What kind of food and drink options are available?

Snack options include hot dogs, burgers, chips, and soda, but these are noted as overpriced and available outside only.

Is this event suitable for very young children?

Yes, Bug-A-Boo is designed as a safe, indoor, and stress-free trick-or-treating adventure for children of all ages, from toddlers to teenagers.

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Contributors & Updates

Last Updated: Nov 11, 2025
Original Submitter: Sep 17, 2025 The Halloween Events Near Me editorial team

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