** ADVANCE WEEKEND APRIL 21-22 ** Beachgoers are shown on Beacons Beach north of Ventura, Calif., near the former site of the Mobil Pier, March 1, 2007. The pier was dismantled in the late 1990s, which changed the flow of the surf and allowed for more beach erosion. Beach Erosion Authority for Clean Ocean Nourishment, or BEACON, is trying to build an artificial reef in the area to restore the beach. (AP Photo/Richard Quinn)