Seiko Maru
Cargo ship (5,385 t, 1940) with machinery aft like a tanker, requisitioned by the navy; hit by an aerial torpedo in the port boiler room on 17 Feb 1944 and sunk by the stern at the Fourth Fleet anchorage. She lies upright with a slight starboard list at 20–50 m, with an old field gun with wooden wheels on deck, Long Lance torpedo bodies and aircraft propellers in the holds; the bridge compass is reported to still work.
depth: 20–50 m