National Cycle Route 8
The route passes through the heart of Wales, and is also known as. It is largely north–south from Holyhead to Cardiff or Chepstow, and in total measures some in length. Some of its route follows the trackbed of former railway lines, such as Lôn Las Menai, Lôn Eifion, the Mawddach Trail and the Taff Trail; in other places, the route is on public highways.
Both ends are easily accessible via the rail network.
Route
Cardiff to Brecon
This largely follows the Taff Trail:Cardiff | Pontypridd | Abercynon | Merthyr [Tydfil County Borough|Merthyr Tydfil] | Brecon
Alternative: Chepstow to Glasbury
Lon Las Cymru provides an alternative south route for those coming into Wales from the Severn Bridge, following National [Cycle Route 42|Route 42] from Chepstow to Glasbury, where it joins Route 8:Chepstow | Usk | Abergavenny | Glasbury
There is also a small loop at the top of Route 42 providing links to Hay-on-Wye.