This Chapter provides for a policy of coastal zone management and in particular safeguards public rights of access to the ocean shore (as defined in section 4). It is the purpose of this Chapter to forever preserve and maintain the sovereignty of the territory heretofore legally existing over the ocean shore of the territory so that the public may have the free and uninterrupted use thereof; to protect, settle and confirm the public rights to the use of the ocean shore acquired by public dedicat