Join for a family fun day and enjoy the `Celebration of the Berry` with the return of the full-scale Vista Strawberry Festival with hundreds of vendors, great food, 5K and kids’ runs, entertainment on our many stages, contests, kids play zone, and more to Historic Downtown Vista. The Vista Strawberry Festival is the only festival in San Diego County that celebrates all the joys and pleasure of the Strawberry. Vista California was once the “Strawberry Capital of the World” and still boasts many strawberry fields.