"Keystone Conservation Area" is defined as all bedlands and tidelands and the waters over these starting at the extreme high water line on the east side of the Keystone jetty in Fort Casey State Park then easterly along the extreme high water line to a line projected from shore through the easternmost row of pilings of the old military wharf, then offshore along that line southeasterly for 600 feet, then southwest parallel to the shoreline to a point due south of the southern tip of the jetty, then north to the extreme high water line on the southern tip of the jetty, then along the extreme high water line on the east side of the jetty to the point of origin.