The Taff Trail (Welsh: Taith Taf) is a popular walking and cycle path that runs for 55 miles (89 km) between Cardiff Bay and Brecon in Wales. It is named so because it follows the course of the River Taff. Along much of its length, it follows the National Cycle Network Route 8 (Lôn Las Cymru) that continues to Holyhead, and is substantially off-road.