Cruising Charlotte For Those Of You Who Have Been On A Caribbean Cruise?

For those of you who have been on a Caribbean Cruise? - cruising charlotte

My friend and I go on a Caribbean cruise in October. The islands visited Princess Cays (Cruise Line Private Iceland), Philipsburg, St. Maarten, Charlotte Amalie, St. Thomas, Grand Turk Iceland.

What are the things to find out about, or make sure to check out. Precruise or are planning to do?