As a child, I loved watching wakes in the water, and the sparkle on the waves reminds me of the clean fresh air that I remember. I think the beauty that is surrendering is the day itself, yes? It was wonderful, indescribable, and now the sun is setting and the boat is headed for the pier. This is a tough scene to photograph (reflective water, dark background); it would be nice to get more definition out of the background hill and trees, but probably not possible. And you did a wonderful job, compositionally and with the light, on the Swiss flag.
I do like the compostion itself, but I agree it could use a tad more definition as a whole. Love the light coming through the flag, and without it this would be just another water shot. Nice job.