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Costa Mesa Boo Ha Ha Haunted Oktoberfest at OC Fair

Costa Mesa, California

October 25, 2025 – Costa Mesa, CA OC’s wildest Halloween party is back and bigger than ever! The Boo Ha Ha takes over the OC Fairgrounds for a night of fright, flavor, and face-melting music. Dead Man Drivin’ Demolition Derby will unleash a fleet of haunted hearses in a smash-and-crash battle to the end. Spectators can expect twisted metal, wild collisions! UNLIMITED craft beer sampling from some of the best breweries in the region.

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