Most of those entrances seem to be open. This one even appears to have a welcome sign. https://maps.google.com/maps?q=public+beach+access+point&hl=en&ll=34.0301

Most of those entrances seem to be open. This one even appears to have a welcome sign. https://maps.google.com/maps?q=public+beach+access+point&hl=en&ll=34.030157,-118.707642&spn=0.000915,0.001371&sll=34.025205,-118.651314&sspn=0.097171,0.171661&t=h&radius=5.9&hq=public+beach+access+point&z=20&layer=c&cbll=34.030131,-118.707527&panoid=4tyl2bVd1UKYAghOA-W-lg&cbp=12,233.61,,2,13.13 https://maps.google.com/maps?q=public+beach+access+point&hl=...