The Del Mar Fairgrounds has begun a drive-in concert series in partnership with Ventura-based CBF Productions. Photo courtesy of Del Mar Fairgrounds.

The Del Mar Fairgrounds has begun a drive-in concert series in partnership with Ventura-based CBF Productions. Photo courtesy of Del Mar Fairgrounds.

After postponing the 2020 San Diego County Fair in April and cancelling most of its 300-plus planned events for the year, the Del Mar Fairgrounds has pivoted to innovative ventures in order to generate revenue...