live at the rescue staging area in the seaside down of jindoh. talk about how difficult the conditions are for divers essentially looking for dead bodies inside the hull. >> reporter: the conditions are very tough. not only are they battling currents and very limited visibility, it's getting around on the ship that's proving difficult in itself. they have ten guide groups from the surface secured on it the ship so they can find their way down. that's how tough it is to see. they've been faced with obstacles that they have to physically move. they've been able to get into what they describe as a lounge area where there were entertain facilities. they understood -- entertainment facilities. they wanted to get to the area where the lounge of the cafeteria is, it's a solid wall, so they're contemplating breaking through somehow. they believe that more of the missing may be inside the cafeteria area, going through the cabins on the fourth level