Were used to it in Malibu. The publicly owned shoreline can be reached through the legally mandated passageways, if you can make it through the locked gates and avoid being seen by security.
It's the same in ... well at least some of the continental states. Georgia for sure has mandated public access (mostly) and the beaches cannot be privately owned, specifically up to the high watermark. We used to use this to swim over and surf on Sea Island ... much to the chagrin of their rent-a-cops!