Very interesting! I don't think I'll ever do a shark dive---but never say never!
Nice photos! My daughter did one of the shark dives one time. I can't imagine doing that. http://blondesherry.blogspot.com/2009/08/ph-ripples-and-more-ripples.html
I could see doing a shark dive if I had a nice cage to be in. They are such beautiful animals. Great ripples, too.http://healingmagichands.wordpress.com/2009/08/22/photohunter-ripples/