The Horseshoe Falls are a popular attraction, despite being a man made weir rather than a natural wonder. Start from the Berwyn, a station Llangollen Railway (or you can park nearby) and follow the Clwydian Way along the Afon Dyfrdwy (River Dee).
The Horseshoe Falls are actually a man-made feature built by Thomas Telford in order to feed the Llangollen Canal. The nearby A5 was also built by Telford as the main London – Holyhead road, now largely used by tourists.
The Chainbridge has recently been restored and makes an interesting and popular way to cross the Afon Dyfrdwy (River Dee) to the Chainbridge Hotel. It was built by the incredibly named – Exuperious Pickering – in 1814 to transport lime from the Llangollen Canal to the A5, though the original has been rebuilt and strengthened.
The walk itself is a straightforward ramble that follows the Clwydian Way and you can either return the same way or follow a slightly higher return via the road if you want to do a circular walk.