Diving on the seafloor offers a delight for the eyes.  Red seaweeds blanket rocks, and colorful invertebrates abound.  But you can’t dive too deep and still enjoy a rainbow of colors!  As light travels through the water, the longer wavelengths – reds, oranges, and yellows –  are absorbed or scattered first, causing these colors to drop out.  So when diving deeper, you’ll see the world in greens, blues, and violets.  Don’t worry, you can still capture vibrant colors at depth with a camera, all you need to remember is your flash.