We did the Kennedy space center excursion, but it was on NCL, also didn’t get there until 1, I reasoned it as something we haven’t done yet and when would we go back to do it? It is an amazing experience to see some of these exhibits, but not enough time to see it all. In all the times we’ve gone to Florida, and I’ve been many times but most were to Disney, we never made it over to the space center. So for us we bit the bullet and overpaid to do the excursion. In the end we had fun and saw something new, and it was a drizzly day so not much of a sit by the pool day. As far as Nassau goes, I am disillusioned as well. My next cruise only stops at Ocean Cay so if in the future we have a stop in Nassau I will be doing some research into private excursions there, maybe parasailing? Jet skis? Again, something different that we haven’t done before. Good luck with your planning, and since you are a first time cruiser use the time to enjoy the ship, you will find that staying behind while the bulk of the people get off you will have your pick of seats!