I’m a reader of Scientific American magazine, and I note that they have, for the past few years, partnered with insight cruises, to have a science cruise, with themed lectures on board. (As though there aren’t enough things to do onboard a cruise ship, now you have to attend class also?).
The website is here, but the lineup of speakers, which includes NPR’s Ira Flatow, is below:
Note that the James Randi Educational Foundation also has a similar cruise, to the Galapagos, which, at least to me, is a more interesting location than the Western Caribbean (although I loved loved loved scuba diving in Turks and Caicos).