One of the most beautiful spots I've been to in the Caribbean is Grand Turk. It was on the Ruby Princess and surprisingly, was a wonderful cruise for a short 4-night getaway. (I typically don't find any cruise under 7-nights up to par.) I found the entertainment wasn't as fabulous in the main theater; however, the activities and entertainment in the bars and lounges were terrific! They have great acts and shows right in the central piazza style atrium. Don't miss the miniature golf on the top deck, as well as the multiple pools found throughout. And if you want a quiet getaway and willing to pay an additional fee, The Sanctuary is a truly relaxing experience with secluded lounges, pool, spa services and even dining. But make sure to reserve early as it books up quickly.
If you are planning ahead, take a look at the Princess Patter guides provided daily during this cruise.
Just to note...if you are considering a 4-night cruise, but debating on which cruise line, compare activities and events with Celebrity Today guides from a 4-night cruise on the Celebrity Constellation.
I'm obsessed with the Piazza areas on all Princess Cruises ships. I love that they keep this theme for the main open area flowing through all of their ships. It's a wonderful place to lounge, enjoy a delicious food or beverage from one of the surrounding restaurants or just people watch (my favorite!)
The main theater is huge AND beautiful. Plus, the shows are spectacular! From Broadway type productions to unique entertainment such as magic, comedy, dancing, and more, it's a fun way to spend an evening at sea that the whole family will love.
If you are cruising to Princess Cays, Princess Cruises private island, one "excursion" that I highly recommend is a bungalow for the day. They are on the beach with availability of lounge chairs, have an inside area with a dining table and fan, include butler service to bring your family a wonderful lunch and drinks, and just look how cute they are!