Hmmm. Looks like someone swiped that post up above my previous one. Probably a good idea.
Yep, you can get a day trip out snorkeling to quite a few beaches on quite a few islands. There are dozens of charters for such fishing/snorkeling/day on the water trips. You can do whatever you want and have a dandy lunch prepared as well.
Don' worry 'bout a ting, angel. Just check in with your hotel, tell them what you'd like and they'll set you up. Really. It's that simple.
Go up north for dinner to Capricorn or Rendezvous.
Funny story there. We took two other couples up to Rendezvous one night where their claim to fame is making their own wine. We had a couple of bottles then my wife asked for a nice Cabernet. The waiter brought it out and poured her a taste. She approved of it and asked the vintage. He turned the label around to show her an 'N' printed on it. You got it. November, baby.
About sixty bucks, as I recall. Grapes are expensive, shipped in.