The only way down into the canyon, unless is changed since a couple years ago in by horse/donkey/mule. It is a scary and yet breathtaking trip. You would never be alone in fact there are only three boats/floats that make the trips and they must be full. I believe from memory its eight people. Theres always a group going so you'd just blend right in. I can't swim and was scared to death at first of the water but things happen so fast and your holding on so tightly while screaming your heads off and laughing you don't notice. Once you hit the still water and just float leisurely along its so quiet and serene you can feel God is there and very near too. Do it, you'll never regret it, I haven't. There is a wonderful hotel there if you want to spend a while. What a place to meditate looking out over that vast canyon expanse. I still get goose pimples just thinking about it....