The deeper our submarine sank, the less colorful the underwater world became. That was a surprise for me aboard my first Atlantis Submarine dive.

For some reason, I thought life down deep would be like in the movies – vibrant Technicolor. Not so.

Our submarine guide Dan explains that colors begin to fade the deeper we go into the ocean. “The vibrant colors you see in photographs of the underwater world are the result of using artificial light,” Dan says. Read more...