We deliberately kept our speed down, but after our time on the Chesterfield Canal last year, and the Glasson Branch in our first year, this was positively speedy. Treacle should never be as runny as this. The bridges have a prominent piece of stonework to allow for stop planks. These (or the boats) are protected by extensive wooden buffers, which make the bridge holes themselves quite narrow. We noticed our speed drop under the bridges, and found a lot of silt for a few boat lengths beyond each one.