Assuming you mean DAT tapes and not the DAT recorder.
I would put them in an airing cupboard and leave them to dry out for several days.
Then I would play them through and transfer the recordings into your DAW. Hopefully this will work.
Listen carefully for glitches and maybe rewind and try again. If the second pass is perfect then you can delete the first pass. Or, if the glitches are in different, places you may have to edit to get a good recording.
Once this is done never use the DATs again.
At least - this is how I would do it...