Very artistic Mike. It sounds like the beaches north of Adelaide, when the tides out you can't even see the water. I read somewhere that shooting in B&W on a digital camera only gives 1/4 the resolution of colour because it uses 1 green, 1 red and 2 blue pixels to get each black. I'm not up to speed with digital so I don't know how true it is. If it is, maybe convert the colour to B&W in photoshop after.
