October 25, 2025, 10 a.m.-4 p.m.
Antioch's Historic Rivertown Business District
708 West 2nd Street
Participating stores on G & 2nd Streets
Antioch, CA
Free, celebrateantioch.org
Car show, trunk or treat, store-to-store trick or treating, over 30 vendors, kids costume contest, pet costume contest, pin-up contest, music and activities.
Sponsored by Celebrate Antioch Foundation and the City of Antioch.
October 18, 2025, 2-6 p.m.
Antioch Water Park
4701 Lone Tree Way
Antioch, CA
$9-13 per person, antiochwaterpark.com
Falloween means an afternoon of costumes, pumpkins, and fall festivities at the Antioch Water Park! Registration is required for each guest attending the event over 36" tall. Registration does not guarantee any giveaways or pumpkins; everything will be first come first serve while supplies last.
Annual events include the
Antioch Easter Bunny Hunt and
summer concerts.
Events are not guaranteed. It is your responsibility to confirm before going.