Taking photos is a real challenge unless you do some homework beforehand in what settings to use on your camera. Luckily, I learned from my previous Atlantis tour on Oahu that digital photos are easily "fixed" with most photo software to provide a more accurate version of what you see.
I use Corel Photo Album 6 and a mere click on Quick Fix really makes a difference as you can see from the "before" and "after" shots above. For some reason video seems to turn out much better than still pictures and requires little or no adjustment.
The actual submarine tour lasts about 45-minutes. The time goes by very quickly - believe me. Before you realize it, the submarine surfaces and you disembark past a new group of guests awaiting their Atlantis adventure.