The Mon & Brecon Canal today
This peaceful and almost entirely rural waterway is a must-see for nature-lovers. The Llangattock escarpment is designated as a Special Site Of Scientific Interest (SSSI), and is the entrance to an extensive cave network. The canal passes through a World Heritage Site, which contains industrial landmarks such as the Big Pit Mining Museum. The Cefn Flight of fourteen locks has also been recognised as being of international significance, and is on Cadw's list of Scheduled Ancient Monuments. As the Mon & Brec is not currently accessible from any other waterway, most boaters cruise it on a hire-boat.
Most of the Canal Bridges are stone built and have a distinctive hump backed shape. Originally, of course, the heaviest traffic over the bridge would have been horse-drawn carts. When steam engines were introduced onto farms, some of the bridges were braced with iron braces to bear the weight; Bridge 141 is an example. Now the bridges with main roads over them have been replaced with a much stronger, traffic friendly shape. The Coach & Horses Bridge 133, in Llangynidr is a good example of this.