I think on this cruise most likely they will turn Singapore Slings on deck 6 into the Diamond Club. This cruise is known for attracting a lot of D's & D+ cruisers. I would not be surprised to have at least 500 onboard. This is the norm on Transatlantic's and from speaking to people on CC, that has been the case the last 2 years. It makes for a very festive atmosphere.
We normally don't book excursions through the ship,especially in the caribbean, but we just booked the Mi Dushi in Aruba. Took it a couple years back and really enjoyed it.