Starboard deck gun of the Ikuta Maru, a Japanese freighter sunk in the Kwajalein anchorage. The ship lies on her port side, with bottom depth ranging from 150 to 180 feet, making her one of the deepest wrecks at Kwaj. She has three of these 5-inch guns, one on the bow and one on each side of the foredeck in front of the bridge. The starboard gun, shown here, is at a depth of about 110 feet.