What's the definition of "beach"? Apparently the coastline of the SF Bay does not count under that law. So for example the area from the Golden Gate Bridge dow

What's the definition of "beach"? Apparently the coastline of the SF Bay does not count under that law. So for example the area from the Golden Gate Bridge down to San Jose, back up to Richmond, over to Larkspur and down back to the Golden Gate bridge has many places on the water that are not public.