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Cycling Lon Las Cymru

250 miles through the heart of Wales on traffic-free paths and quiet roads

Guidebook to cycling Lôn Las Cymru, a 255 mile (410km) route from Cardiff, or 242 miles (390km) from Chepstow to Holyhead, showcasing Wales' beautiful rural heartland. Cycling is on quiet roads and traffic-free paths, and although there are some mountainous sections, gradients are mostly gentle. The route can be completed in 4 to 7 days.


The best time to go is between April and October when the days are longer and the weather is at its best.


The route passes through many of the main towns in the Brecon Beacons, Black Mountains, Cambrian Mountains and Snowdonia National Park.


The route can be ridden as a leisure ride or as a challenge and there are schedules for both types of rider. There are mountainous sections in Mid Wales but gradients are never severe and some, such as that up the Vale of Ewyas, barely perceptible until the very top.

Must See

Lôn Las Cymru runs from Cardiff or Chepstow to Holyhead, passing through the heart of Wales. Translating loosely as Wales' Green Lane, it is the preeminent cycle route in Wales, passing through lush countryside, and following quiet lanes and former railway lines.
22 Aug 2018
17.20 x 11.60 x .80cm

Guidebook to cycling Lon Las Cymru, a 255 mile (410km) route from Cardiff, or 242 mile (390km) from Chepstow to Holyhead, showcasing Wales's beautiful rural heartland.

Divided into 5 stages, the route (which follows quiet roads and traffic-free paths) is described south to north from both Cardiff and Chepstow. Accompanying route description for each stage is 1:100,000 mapping and elevation profiles, giving a clear indication of course. Suggested summary schedules from both start destinations are included, detailing possible 4 to 7 day cycle options. Also included is handy practical information about transport to and from the route, accommodation en route, baggage transfer options and preparing your bike.

Passing through the Brecon Beacons National Park, Snowdonia National Park, and over the Black Mountains, the Brecon Beacons and the Cambrian Mountains, the route is as scenic as it is rewarding making it a ride to remember.

Table of Contents
Richard Barrett Cicerone author BARRETT

By Richard Barrett

Richard Barrett spent his working life as a professional marketer, but still found time for climbing, winter mountaineering and sea kayaking. He first visited the Harris hills as a teenager and became a regular visitor. He lived in North Harris for a number of years, where he and his wife ran a guest house and, although now a city-dweller, he still makes frequent forays to the Hebrides, reconnecting with the wilderness and catching up with old friends.

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