Another walk today and another waterway. This is known as The Cut-Off Channel . It is entirely man made and runs for 45km along the east side of The Fens from Norfolk southwards through Suffolk and on into Essex. The most interesting thing about it is that the flow can be reversed. In times of wet ,the flow is northward into the Great Ouse and then the sea. In drier times the flow can be southward to provide water for Essex, the county with the lowest rainfall in the UK. As the reflections in the photo show, today there was no flow in either direction.