OK guys so what's the story then. I'm currently in The DR with the family. Would like to do this excursion, but have some reservations as I keep hearing different things about it. The party would be ME (Afraid of jumping from really high altitudes), my wife who is a strong swimmer so no worries there and two boys (18 and 19) who are not good swimmers at all. What do you think? Also how long does this really take?