🎃 4th Annual Monster Mash 5K & Creature Crawl 1K 👾

Save the Date: October 24, 2026

Join the Mid-Columbia Children's Museum for Monster Mash 5K & Creature Crawl 1K, a family-friendly Halloween event that brings together costumes, movement, and hands-on fun in support of the future Mid-Columbia Children's Museum.

Whether you're running the 5K, walking with friends, or cheering on your little monster in the Creature Crawl, there's something for everyone.

Event Details
📅 Saturday, October 24, 2026
📍 Howard Amon Park | Richland, WA

What to Expect
🎃 Costume-friendly 5K run/walk
👾 Creature Crawl 1K for kids and families
🔬 STEM-inspired activities
🍂 Family-friendly fall fun
❤️ Support for the future Mid-Columbia Children's Museum

Registration Coming Soon
Registration will open later this summer. For now, save the date, spread the word, and start thinking about your costume!

We look forward to celebrating another year of community, creativity, curiosity, and fun with you.

Sponsorship Opportunities
Interested in reaching local families while supporting hands-on learning in our community? Sponsorship opportunities for the 2026 Monster Mash 5K & Creature Crawl 1K are now available.

To learn more about sponsorship levels and benefits, please contact fundraising@mccmuseum.org.