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Open Today
10am - 5pm
At the Museum - Aug 27th

It's Pay What You Can weekend! Join us for a variety of live performances, activities and special guests during the last weekend of Summer Splash!, our very first summer-long festival of fun.

Hours & Info


Boo Bash Menu

Boo Bash dog 2015
Your Favorite Fall Costume Party!

Thank you for another amazing event!
Come back in 2016 - 12-5 p.m. Oct. 29

Last year's Boo Bash theme was Scales & Tales!

We had a dozen fun fall-inspired activities including:

  • Door prizes EVERY 30 MINUTES
  • Face Painting
  • Investigate Animal Bones 
  • Creepy Crawly Live Bugs
  • Pumpkin Beanbag Toss
  • Museum Mural Bug Hunt
  • Build a Scarecrow
  • Apple Pressing
  • Glow-in-the-Dark Silk Screening
  • Spider Wands
  • Black Light Room
  • Decorate a Cupcake
  • Liquid Nitrogen Demonstrations
  • Stories on the Stage

Thank you to our Activity Sponsors & Event Partner:

Abby's Cookie & Cupcakes Logo
Boo Bash1
Boo Bash 2011 Good for You
Boo Bash 2011 Dino

Boo Bash is a wonderful community event and a Hands On family tradition. Are you or your business interested in sponsoring this program? Call our Director of Development at (360) 956-0818 x146 or email development(at)hocm.org.

Loved Boo Bash? 

Don't miss out family countdown to the new year - Noon Year's Eve party! The fun happens each year on Dec. 31. Click here to learn more.