When we ran the Sheenjek it was a pretty busy time at the oars
Lots of hard turns, shallow water, sweepers, bfr's etc
On that trip I had a pard on my boat a local doc
When we finally got to the lower river on an easy stretch he offered to take the oars to give me a break
Will never forget his incredulous response to how "hard" it was to keep the boat in the channel & not get hung up on the shallows
It's not rocket science, but it takes some knowledge of boating & often sheer muscle & energy to keep from winding up in a bad place in heavy water
Some knowledge of how boats move across the water, reading current & channels & setting up beforehand so you're not working against the teeth of the current is extremely helpful but even with said knowledge you often need muscle mass & energy to pull it off
Plus it never ceases to amaze me how an increase in water volume can make things harder
