My wife and I went on the river tubing excursion last year and we really didn't like it that much. For every 2 people, there was a "guide" that stayed with you the entire time. He hung on to our tubes and talked to us the entire time, so we really didn't get to just talk with each other and enjoy the experience by ourselves. At the end, each of the guides waits for you to pony up a tip. Our guide said "I hope you will remember me at the end of our trip today" (hint, hint). My tip was based more on "here, now stay away from me" than anything else. This all said, though, it's definitely a different strokes for different folks thing, as I've seen several posts where people enjoy this excursion. We didn't have our kids with us, so maybe we would have had more fun with them.