California courts have already held in this case that there is no "public trust" access to the beach, due to the peculiarities of land titles that originated in Mexico before Californian statehood.
A California court of appeals has now held that the State's other hook, the idea that the property was "dedicated to public use" is also baseless. That's what this article is about: https://www.courts.ca.gov/opinions/nonpub/A154022.PDF
> That said, we have been tasked here with reviewing a trial court’s application of the common law of public dedication, which is the sole legal basis for Friends’ remaining claims in this case.
> We have endeavored faithfully to follow the prior holdings of our Supreme Court and fellow appellate courts in applying common law of public dedication principles here. However, we have not attempted to extend the public dedication doctrine beyond the common law parameters previously recognized by court decisions in this state. As strong as the coastal access policies of our state are, we do not understand them to empower us to do so.
There is no "rightful public access" to this property.