this video shows US Navy divers on the USS Oriskany the day after she was sunk off Pensacola.  very good look at what the island and the deck look like.

    the video:  http://easylink.playstream.com/220so...water_high.wvx

   something that struck me about the Navy divers was how much they use their hands to fin.  also, when the divers landed on the deck, they landed vertically.  i had expected them to remain horizontal (anyway, that's what i would have done).