Going to Sandals Negril on June 13th, and was wondering about the extras like the zip line and the swimming with the dolphins and also the scuba course. Any must do's? anything we shouldn't do? But really what I'm not sure about is booking online now, or waiting until we're there to book the activities. We have a butler service and we are staying for a week and we already have candelight dinner and couples massage. Any thoughts? Thanks