Thank you Albert. only saw your answer now.
Hi gals. May I suggest that you either get a ships official tour on board or go together or with a couple of passengers in a taxi. A word of warning though. Do not get a taxi from outside the dock gates. Those taxis that are inside have certification and are safe, and you can barter. Those outside have certain tricks which can put you and your money in jeopardy. Jamaica is such a beautiful island and their garden are superb, there are some great "planters houses2 open to view as well. Montego Bay away from the beach is nothing to shout about but the drivers will take you where you want to go or where they consider is worth seeing. Take some water with your rum...regards Neil Dow.
Try this link for ideas of what to do in Jamaica if you do not want to do the ship's tours: http://boards.cruisecritic.com/forumdisplay.php?f=11.