Great minds think alike. I was just studying the Bonaire snorkeling tours, along with Grand Turk. We went to Curacao for 5 nights a few years ago, but there were a couple of places we didn't see. We will probably tour there with a guide or one of the islandy things, but we have seen the aquarium and been almost all over the island. If we had another day, we would have gone to Klein Curacao or Bonaire. I have heard Bonaire is THE place to snorkel/dive.

The shortest luxury I have found so far were a couple of Cunard things from NY. Not sure about that, and I can't commit to anything right now.

A villa in Tuscany sounds wonderful.