The title gives me the Barry Manillow syndrome. :-) Nice shot. The colour somehow indicates that the water is cold. Maybe the picture would be stronger with feet occupying more of the frame?
I might have tried to leave a bit more of the feet in and crop out more at the top - almost totally crop out the rock at the top The lightness at the top draws too much attention from the swimming feet. But still, I like it.
Nice title, good idea. Ripples around the feet are interesting. I'd like to maybe see more of the feet, it just looks funny having them cut off at the toes.