St Kitts.
Speaking of the Caribbean, unless you like hot weather, beaches, and random excursions, there's really nothing else here. People come here to gamble. Go to Vegas for that and have some more fun. If you want to see these coon locals and go in to the jungles for ziplining, then try the Caribbean. Otherwise, you're just gonna have a bad time.
Maybe it's because I've been here for two years, but it really is a shit place to live. And aside from titty bars on some islands (St. Maarten) and the casinos in pretty much every island, you're not missing much. I guess it's good to go once. Just go to a good island, like Maarten or Lucia. Not Kitts.