I have always loved taking panoramic pictures (just splicing snap shots) and have wanted to expand this interest. I started wondering about underwater panoramic and did a quick web search. I found this web page with a very cool image. Anyone else out there ever look into this. It was taken with a fish eye and then digitally modified. It does not look like there are to many people doing this sort of photography. I think that freediving shots would especially look cool. To bad this one has all of those tanks cluttering up the image.
http://www.panoramas.dk/fullscreen/fullscreen45.html
http://www.panoramas.dk/fullscreen/fullscreen45.html