"The fastest you can go in a float tube is really slow." Not necessarily! Some years ago I was float tubing for bluegills when a sudden summer storm came up. The wind was pushing me along away from my car and the access site faster than I could have run on land. I had just finally hunched over and turned my back to the wind and hoped I wouldn't get fried by lightening when a bass boat overtook me and hauled me aboard. Otherwise i would have had a long walk around the lake when I eventually reached the other shore.