I feel you could get a very strong statement by isolating just the center island(?) in the midst of the white clouds and blue sky/water. The other elements are distracting on the left and right. It seemed to be simpler to demo what I was talking about since I didn't think I would be clear.

Example can be found here; http://hawkeye978.smugmug.com/photos/203189480-L.jpg

Simple crop and clone.