Took a trip with Blue O 2 in Egypt a few years back and had a wicked weeks diving on board one of their awsome live a boards. The itenary was Brothers and Elphinstone which provided a great weeks worth of diving, many sharks, dolphins, and awsome reefs. This Oceanic White Tip was crusing only 5 - 10 meters underneath and around the boat for some time, I managed to get many pictures but this one was the best.
The picture was taken with my wifes D100 in a Seacam housing.
http://www.flickr.com/photos/jamie212/7752552184/
http://www.flickr.com/photos/jamie212/7758964554