On arrival at Marsworth we moored up by two fishermen, one had a friendly dog called Barnaby. I washed the canal side and roof of the boat and while I was doing so he caught a very large Carp. As he was struggling with his tiny rod and landing net ,the other fisherman came to help him land it. They weighed it and found that it was a sixteen pounder! They noticed that it had a swollen, or deformed mouth. It was probably quite an old fish, and I thought this deformity may have been due to it being hooked out of the canal far too many times, not a pleasant experience if you are a fish!. Anyway, we left our tranquil overnight mooring at Marsworth and luckily were able to share all seven locks up past the reservoirs with nb Kingfisher. We sipped our coffee while cruising through the green tree lined corridor that is Tring Cutting to moor in a lovely sunny spot at Cowroast just in time to pop down to the old Cowroast Inn which pre-dates the GU Canal. We reclined on the leather sofa by a roaring log fire with our drinks while we perused the menu. The name Cowroast derives from Cow Rest, the days when cows were driven along the drovers roads and paused here over night.