Get ready for a frightfully fun evening of costumes, treats, and creepy-cool surprises at our annual Halloween at the Center celebration!

Kick things off with Trunk or Treat in our transformed parking lot, where a fleet of festively decorated cars and booths await with games, goodies, and ghoulish delights! Come dressed in your Halloween best and explore each trunk for a new surprise, if you dare!

Craft up some spooky creations and discover fun Halloween-themed activities for all ages. When you've worked up an appetite, grab a bite from one of the on-site food trucks serving up tasty treats.

Stay for the grand finale! Join us for a special Halloween magic performance after Mill Valley Trunk or Treat in the Cascade Room! Brian Scott Magic 6:15pm-7:00pm.

Join us for a spectacular Halloween magic show from Brian Scott Magic! The special show will take place directly after Mill Valley Trunk or Treat on October 30th, 2026. Trunk or Treat is 4:00pm to 6:00pm in the Mill Valley Community Center parking lot, then the show is 6:15pm to 7:00pm in the Cascade Room inside!