Tri-Valley Halloween Con - Bay Area Festivals | Kids Out and About San Francisco

Tri-Valley Halloween Con - Bay Area Festivals

*The event has already taken place on this date: Sun, 10/31/2021
Tri-Valley Halloween Con features toys, pop culture, LEGO, comics, anime, collectibles. Special guests. Cosplay Costume Contest cash prizes. Our Contra Costa Cons have been smash hits and now we're coming to the Tri-Valley area on Halloween. Toys, all things pop culture, collectibles (new and vintage), anime, LEGO, comics, art and much more will be featured at the family-friendly show presented by Bay Area Festivals and American Brick Builders.

Please help us keep this calendar up to date! If this activity is sold out, canceled, or otherwise needs alteration, email so we can update it immediately.

New items and collectibles from Disney, Transformers, Funko Pop, LEGO, Pokémon, G.I. Joe, Marvel, DC Comics, Dragon Ball Z, My Hero Academia, Hot Wheels and much more will be available by the variety of exhibitors at the show. Posters, art, prints, t-shirts, hats, apparel, anime, sports cards, books, comics, LEGO, buttons, classic video games, jewelry and cards are featured too.

Advance general admission tickets include a $2 Toy Buck with each purchase. That promotion ends at 9 a.m. on Halloween morning.

Kids under 10 are free.

Online sales continue until the end of Tri-Valley Halloween Con. Door sales begin at 9:45 a.m. at the Shannon Center on Oct. 31.

*Times, dates, and prices of any activity posted to our calendars are subject to change. Please be sure to click through directly to the organization’s website to verify.


Shannon Community Center
11600 Shannon Avenue
Dublin, CA, 94568
United States


925) 408-4014
Contact name: 
The event has already taken place on this date: 
10:00 AM – 4:00 PM PDT


All Ages Adults & kids together Adults without kids