Alum Bay II, a photo by Davidap2009 on Flickr.

Second in the series.For those interested.
I have darkened the sky to bring out the dramatic light on the sandy cliffs. I had forgotten my polarising filter that day so in Aperture I selected the blue colour in the sky, removed the luminance and added a little saturation in the colour version .I then added the red filter effect using Silver Efex pro 2.