This was my first try using my 8mm fisheye lens underwater (Dec. 18, 2010). Visibility was about 15 feet.
Here are some more from Dec. 28, 2010. Visibility was 15-20 feet.
Feb. 19, 2010. Visibility was only 10-15', but at least it was nice and bright. I tried to use a slave strobe as a fake flashlight for the photos, but it was so bright it looked like an atomic bomb test.
Below photos from March 12, 2010. Visibility was 10-15'.