As I have written in my 300th Post images like this one come out of long shutter speeds, where you give objects time to move in the frame. This could work on night traffic, where you only see the lines of moving cars, or, like in this case, with water. Water never stops. In order to capture it truly you have to rely on a fast shutter speed so that everything is crisp. This is especially the case when you want to photograph splashes or drops of water. But water in combination with a long shutter speed gives you magic.
Here it gave me a fog like element in the image, and paired with the right post production, you can get pretty awesome results. For this one I lowered the saturation and played with the contrast. I also sharpened the stones a bit, so that they stick even more out against the soft sea.