Great sunshine, fine sand, transparent then turquoise water in places, that’s the dreamy postcard we sometimes – quite often, in fact – experience on Destination Granville Terre et Mer. Some people think that the color of the sea is a reflection of the blue sky, but all you have to do is take a little water in your hand to realize that it really is transparent.
Then the explanation doesn’t come from the sky, or just a little…. It’s actually the light penetrating the water. The sun’s rays are not just white: they are a visible spectrum of colors. As they progress through the sea, these disappear. At first, the rays are yellow, then turn red, green and finally blue.