Assume a person owns a beach house in California.
How far into the ocean does this person own as a landowner?
Does the person own all coral reef, rocks and other things in the ocean in his owner portion of the ocean?
How far are ships allowed to sail in proximity of his shoreline?
Can this person pile up rocks on his portion of his owned ocean and build a structure such as a guesthouse on it?
Do these laws, permits and restrictions of building and ocean ownership change depending on the county of California or are they all the same? Do they change based on state or are they the same anywhere in the USA?