Rick's Cafe is definetly the best place to see the sunset in Jamaica. It is quite quiet through the day but in the afternoon it starts to get busy as everyone is there with their cameras waiting for the sunset. There's bands which play to keep you occupied, the bands play a number of reggae songs especially the master himself Mr. Bob Marley!!
If that's not enough to keep you waiting then going for a swim in the sea is a great experience as you get to see many people jump of the 40ft high cliff...and if you're that daring then you will jump it!!
Hope you go and enjoy yourself at Rick's Cafe!!