I'm curious about the alleged over-sharpening, as I've barely sharpened it at all. It's had my standard input sharpening in LR (amount 40, radius 0.8, detail 50, masking 25) and the output sharpening I've used for every shot I've ever posted here, namely "sharpen for screen".
What makes you think it's too much? Are you mistaking the sun reflections from the water for something else?
Jeremy