Yesterday we were riding our bikes on the Cedar River trail and the river is really high and it is running at a good pace. It made me want to go tubing but I thought it might be illegal. Asher and I talked about how we would escape the authorities if they tried to stop us. Then I google it and what do I find? It is perfectly legit and they even give you 7-step instructions if you can't figure it out for yourself. Hot weather? Look for us there!