PS - as the other poster mentioned it would be a lot to try to see so many places in one visit. I recommend a day or two in Montego Bay and the rest of your time in Negril. But it is possible and if you are a go getter and don't mind just getting a bit at each place then GO FOR IT!!! Couple days each place and rest travel time by bus (cheaper) or car/van charter (more expensive). More advice - please make sure you use a recommended tour guide that knows the island and will get you safely to your next stop.