Cape Henlopen, on Delaware Bay, has long been a public use area although it did not officially become a Delaware state park until 1964. William Penn, the founder of Pennsylvania and early leader of Delaware, decreed that Cape Henlopen and its natural resources be set aside for the use and enjoyment of the citizens of the Delaware Colony. Penn's decree established Cape Henlopen as one of the first public use parcels of land in the Thirteen Colonies.
