Thank you very very much, Giuseppe. There are also waters around here that are not clear, especially when it rains or when the snow melts. But generally speaking it is the water of the (unspoiled ;-)) sea that has the greatest degree of transluciveness. (Has to do with the dissolved salts in it.)
Anyway, I would be more happy if the minds of people around were half as clear as the water, but that's another story ;-)
Nick I love this dreamy image and the following. The blazing milky light hide and let see the great part of the image. Only the Swiss water is perfectly clear, as always. You lucky! Buona notte.