djc wrote:
Spamlet wrote:

Another question gone begging is how they organised going through the
tunnels. In fact, a recent TV prog mentioned that barges could be backed up
for weeks waiting their turn. I would imagine the tunnels would still be
the biggest drawback to canal transport today.

Bargee lies on back on roof of boat and 'walks' along roof of
tunnel.

prior to motorised narrow boats, that is.