In 135 days · Sat, Oct 24, 2026
When
Saturday, October 24th, 2026
Where
Howard Amon Park at the Finger Nail, Richland WA
Distances
5K
About this race
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
- Date: Saturday, October 24, 2026
- Location: 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.
For more information, visit the event page: MCCM Monster Mash 5K & Creature Crawl 1K.
Course map
Race-day essentials
Light, simple picks for a fast effort.
Top pick
SHOKZ OpenRun Bone Conduction Open-Ear Bluetooth Sport Headphones, Running Workout Bundle with Waterproof Carrying Case & Sweat Headband, IP67 Sweat Resistant, 8H Playtime, Mic, Black
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Garmin Forerunner 55, GPS Running Watch with Daily Suggested Workouts, Up to 2 Weeks of Battery Life, Black - 010-02562-00
$159.99
goodr A Unicorn's Calamity Polarized Sunglasses, Medium Sized (OG), Black Solid Frames with Black Non-Reflective Glare Reducing Lenses, UV400 Protection, No Slip, No Bounce
$30.00
Nathan Peak Running Hydration Waist Pack Belt w/Speed Draw Flask Water Bottle, 18oz/535 ml Push/Pull Race Cap, Expandable Zippered Stretch Pocket
$44.00
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