Both Piazza Carmel and Del Mar Highlands Town Center are having Halloween trick-or-treat events in October. The Piazza Carmel event (see the Piazza Carmel Events Page) is on Sunday, October 31 from 12:00 to 3:00 PM. It includes trick-or-treating and special store events. The Town Center event (see the Del Mar Highlands Town Center Events Page) is on Friday, October 29 from 4:00 to 6:00 PM. It includes trick-or-treating and a live concert in the amphitheater.