I'm looking for information regarding this tour, please. If you have taken the tour, could you please tell me if you booked it through your cruise company (I'm sailing with Carnival in June) or did you book through an independent tour company? How long was the trip? What was the price you paid? Also, I recall seeing someone comment that you should not take this trip if you have a "bad" back. Several in our group have problems, though not chronic, with their lower backs. Is this trip really so rough as to be avoided? Or, could you simply eliminate potential problems by slowing down over bumpy roads? My cruise is in 5 weeks, so I am anxious to get information regarding this tour. Thanks!