Last year, the homeowners at Broad Beach in Malibu, CA installed 1.1 mile rock revetment seawall on the public beach. I stopped by this past weekend to see how it's doing, and the results are not pretty. I happened to be there during an extremely low tide, so I could actually get down on a narrow stretch of sand. But it was very clear from the lack of any "dry" sand that during most of the tidal cycle there is literally no beach walk on.
Visit the "Save Broad Beach" page on Facebook to learn more and show your support for freeing this beach.