New path, greetings and tench.

1. We take a new path out of the industrial estate and find ourselves walking along the river, past a set of lock gates and through a cafe's outdoor space to the high street.

2. A joyful, friendly man in a red vest greets everyone who comes into the coffee shop as if he knows them well -- and perhaps he does. He gives his best shot at chatting with a man who communicates using sign language. The conversation is full of okay signs, thumbs up and comparisons of muscles.

3. Back at the lock the fishermen have caught a fish, 18 inches long, veiled in slime and glowing the same green gold as the river water. A tench, we are told. It waits patiently to be released.