Hi again Frog Man,
You must have misread Ian's post, a few hours out of Market Harborough is the Foxton flight, you would get there in the 1st evening with no problem, its well set up with pub, restaurant, museum etc and followed by the Watford locks.
On my second canal boat outing (2 week hire from Gayton) after going to Market Harborough, on the return we started at the bottom of Foxton at 7 am, got down the Watford flight and through Long Buckby all in one day -mind you my wire did stop talking to me until we stopped for the night.
Our first outing was Rugby to Ashby, as I mentioned in your earlier thread.