Too funny! I just came back from Hawaii a few weeks back. I was there shooting a wedding. On one of the days off me and my brother went looking for a place to boogie board. Someone from the wedding party recommended Sandy beach. We arrived and got our gear on. We did not make it to the shore when the lifeguard approached us and asked if we were experienced. I said "no". He told us not to board there, citing the many injuries that happen at that beach. He recommended another beach about half an hour up the road. My brother, and second shooter, said he asked us to leave so we would not bother the locals. I told my brother that whether he wanted us to leave for the locals or the waves either way I was leaving. Good to see that we made the right choice.
p.s.
At that next beach I was stung by a Portuguese Man of War on the first wave I rode. lol
Francois brings up an interesting point, regarding getting rid of the string. For surfers and sporting-types, the string (and the escaping board) are natural parts of this image; however, for other uses, removing the string might be appropriate.
Heck, consider how this image would look without the string AND without the board. Totally different "feel," and although not natural, perhaps perfectly appropriate to create that different feel for a different application.
It's a great image as is, and I'm suggesting only that there might be another great image, for a totally different application, in this same scene.