We have NEVER been on a cruise - it would be me & my hubby & 12 yr old daughter, and probably my parents. Do we do a short 4 day cruise? Do we do a week long cruise - and where? The St islands (St. Marteen, St. John, etc) or Mexico? We wanted to add in a few days at Universal first as my daughter has never been. What islands are fun? What islands have the most options? What is the funest to do on the ship as a family? Give me everything... my husband thinks he will be bored & have nothing to do on the ship... help me prove him wrong!