WEEKEND PICKS: In Surf City You Can Have Your Plum Cake, Car Show, Surfin' Sunday and Concerts in the Park HUNTINGTON BEACH, CALIF.-- 'How can so many events be happening in one day' On Sunday, August 25 there are over a dozen things going on, but most of us can only do one, or two, or three. Here are the hot happenings: Surf City Garage Car Show - 5th annual event is free Old World Village Plum Festival - free Surfin' Sundays with the Nocturnes and Breakaways free Concerts in the Park with Bob DeSena Latin Jazz Band free COSTA MESA: Elvis Festival at OC Market Place