"Special Submarine S.1 and a Decoy Submarine in Calcara Creek, Malta - with the old "bullfrog" gateship and remains of the boom" image: view of a small bay, with the hulk of a guardship tethered to the rusting remains of a submarine hull and the 'conning tower' of a decoy. To the left some wooden structures in the sea, and behind the fortifications above the bay.