Very cool Roger! Cozumel is on my list of places to go diving... I bet that was awesome. I know badwhale really enjoyed his trip there. Taking pictures underwater is a pain, but if you have a decent camera with a strobe and get very close to your subject you'll get some good shots. I am no expert - it takes me 100 shots to get 3 good ones. I have just about the same ratio on land too.