I want to go on a Caribbean Cruise!

I told Bryan I wanted to go on some Caribbean cruises. Yes, that is a dream, but at least I would like to go on one cruise. My friend went last year and said her and her husband went had a ball. I really want to go at least once in my life, more if I can get away with it. I looked on several sites to see what the activities are. They offer EVERYTHING! Personally if I could swim during the day, read my book, and go to shows in the evening I would be happy. Of course, I want to visit the Caribbean Islands too. Wish me luck, now all I have to do is talk Bryan into it.