I know this may sound stupid (Complete noob here)
But this image:
To get that clear an image of underwater did you use a Polarising Filter?
That's a great set Mike. It was great to meet you, Gary, Woodsy etc even if it was only for a couple of hours.
I just got back today and have masses of shots to go through. I will probably post some tomorrow.
I'm off to look at the posts from the others, although they will have to go some to beat these.