Indeed, our old dog, Buster, the one in my Avatar, had his first canal holiday on the K&A in 2001.
On the first evening he leapt off the boat onto the tow path as I was tying up, but wouldn't walk the plank or jump back on to the boat .
I spread a line of treats along the plank to temp him to use it, and he followed them. Mind you it was amazing how far he stretched with one hind leg still on the bank, before finally giving into temptation and putting all of his paws onto the plank. After that he had no trouble using the plank until his balance went in his dotage.