Llangollen Canal has 19 stone arches, each with a 45-foot (14 metre) span. Another aqueduct carries the canal over the River Ceiriog at Chirk, and there are tunnels nearby at Whitehouses, Chirk, and Ellesmere. The canal also forms the boundary on two sides of the Fenn's, Whixall and Bettisfield Mosses National Nature Reserve. In 2009 an eleven-mile section of the canal from Gledrid Bridge near Rhoswiel through to the Horseshoe Falls, which includes Chirk Aqueduct and Pontcysyllte Aqueduct, was declared a World Heritage site by UNESCO. The canal at Hurleston Junction rises from the Shropshire Union Canal main line, through four adjacent
Llangollen Canal Llangollen Marina and the final section is used only by horse drawn trip boats. The current boats maintain a long tradition, which was first offered to visitors in 1884. The towpath beside the feeder is in good condition, and walkers can reach the weir at Horseshoe Falls. British Waterways maintains a gravel shoal immediately upstream of the marina entrance past Llangollen Wharf. This maintains a draught which most narrowboats cannot pass, but which is passable by the shallow draughted trip boats. In 2005, a marina was constructed by British Waterways, just upstream from Llangollen Wharf, to relieve the acute shortage