In between jumping into canals, I've been pondering about towpaths. Most canals, and all the ones around here, only have a towpath on one side. This begs the question of how, in the days of horse drawn boats, did they pass each other? I suppose you could slacken off the ropes on one boat, lifting them up and letting the other boat pass underneath - but it seems like a lot of trouble, especially if the canal is busy. Maybe there used to be a path on each side but it doesn't look like there was and there certainly isn't under any of the bridges. Any one know and/or care?