Welcome to Battleship Cove, home of USS JOSEPH P. KENNEDY, JR. (DD-850)   USS LIONFISH (SS-298) is moored nearby. The battleship USS MASSACHUSETTS (BB-59), a soviet-built missile boat, two PT boats and other displays are also included in the impressive Battleship Cove complex.   Looking forward from the bridge of the destroyer.  The Braga Bridge rises overhead. A portion of the bow of  USS FALL RIVER (CA-131) and a LCM are on display off the destroyer's starboard bow.           Looking forward from the fantail of the destroyer.  The enclosure in the foreground is the entrance to the Arleigh Burke National Destroyermen's Museum.