If you don't sign up for a ship excursion, you can get a driver with a van to tour the island for 3 hours for a very reasonable price if you share with 2-3 other couples.
No cruises added
We did not make this stop due to weather
We found a beach that was near the shopping areas, with good restaurants and looks of great island music.
Explore the ship. They have a lot of little hidden nuggets that you can only find by exploring. This includes quiet areas and little exclusive mini-pubs with great entertainment.