While I was on Maui March 2007, I went on a trip in the Atlantis submarine tour off Lahaina, down so deep and where most of the colour spectrum is gone. Most of the red color will be gone at 10 feet, orange is gone at 25 feet and yellow is gone at 35 feet leaving only blue and aqua. The lights on the hull of the submarine restore the colours, so this is why you see the bright and vivid colours of the fish, but towards the outside of the photo you will only see blue.
Atlantis Adventures is proud to be recognized as the largest provider of tourist attractions on the Hawaiian Islands. Spectacular island setting plays host to our flagship tourist offering—the Atlantis Submarine Tour. Featuring the most technologically advanced vessels of their kind, these absolutely real submarines carry up to 48 passengers to depths of 100 feet and beyond.