WOW! I love the intense blues in this picture. Perfect desktop! I rarely give a "10", but you've got one here. The rocks, the water, the bit of beach visable on the left, and the horizon, along with the colors, all added up.
This was shot through a Singh-Ray variable Blue/Gold polarizing filter - which leads to some interesting results. I increased the contrast/saturation with several layers in Photoshop - I just can't leave well enough alone.