To be honest I've only ever canoed a lake a couple of times. I found it boring. On the other hand, the river I grew up canoeing was a class 3. I started tubing down it (most often stopping at every rapids and falls to swim a bit) years before canoes became popular (the canoes didn't arrive until we were about 14 years old)
Loved diving under the falls to explore.
Loved diving under the falls to explore.