Rio De Janeiro Maru
The Rio was a 450' former passenger vessel converted to an aux. transport with a variety of defensive guns. The ship sank after being hit with two 1000 lb. bombs and now rests in 115' of water on the starboard side. There's a large deck gun at the stern, and the name is still visible across the stern. As it lies on its side, penetration into the engine room is horizontal effort though the various stairwells.