We did the Martha Brae River tubing last March when we sailed RCCL. Best part of our trip as we were on a spring break cruise from hell (didn’t even think about college spring break time at booking). The tour guide Hooks all your tubes together and you float down the river. He was very educational and told us so much about the culture. The other guides were getting a little aggravated with him because he was taking up so much time with us and they would have to go around us. He stopped and let the kids jump in and swim around. If it wasn’t for this excursion I feel like our whole cruise would have been awful. Thankfully jamaica saved the day! Will try to post a pic. We didn’t do the water park but the kids got in the pool area for a bit and then we went back to port. Then we took a cab to blue waters club and let the kids get in the beach.