Island Living is perfect... if you are playing out the Under The Sea song as a way to live.

I love Sulani world. It was the first world I started to build for my playsave, I have all the lots as I want them now, and the plans for all my sims who are to live there.
I have only read about Hawaii and the Polynesian Islands, but I really like that the world and premades fits with what I have read about the history, it gives a well thought out impression, and adds to my gameplay.
I have also made a beach bum, living on Key Point, in a ship wreck. It just sort of invited to it.