This was great! A top contender if not THE top, for sure! Love all the little details and love you put into the small stuff, just for fun, like the golf cart interactions/swimming/environment. my critique would be it was a little tough at first to get the hang of, but that's alright. sometimes you score a 9 on your first hole in real life, haha.
Was the helicopter pad just for show? did something special happen if I hit a ball on it?
Also hitting the "D" key seemed to bring up a debug screen, which I did and took a moment to figure out what happened.