I wanted to try and get that misty effect you get of the sea washing over the pebbles. It was difficult as I don't yet have any ND filters. This is almost the effect I wanted. It was just too light to have an exposure any longer.

Here's some similar shots taken at the same time:

http://www.pbase.com/image/32215760
A fun one here: http://www.pbase.com/image/32215761
and finally: http://www.pbase.com/image/32215763