6. Pont Cysyllte Aqueduct, which carries the water supply from the
River Dee west of Llangollen to Hurleston Reservoir in Cheshire where
it provides water to the Chester Canal and also provides the water
supply for the Borough of Crewe and Nantwich.
7. A clear trough of water 7ft wide for a 6ft 6ins narrow boat - the
water trough extends under the tow path to reduce the drag on the boat.