This is very much the wild section of Lôn Las Cymru and is essentially one big mountain pass.
Riding to over 500m, the highest on-road National Cycle Network section in Wales, combined with the stunning views of Snowdonia from the Wynford-Vaughn-Thomas memorial and the way the route circles the hills above Llyn Clywedog, you can experience real escapism and solitude.
The route from Llanidloes to Caersws takes you away from Lôn Las Cymru but links nicely to the rail network.
We have taken all responsible steps to ensure that these routes are safe and achievable by people with a reasonable level of fitness. However, all outdoor activities involve a degree of risk. To the extent permitted by law, Sustrans accepts no responsibility for any accidents or injury resulting from following these routes. Walking and cycling routes change over time. Weather conditions may also affect path surfaces. Please use your own judgement when using the routes based upon the weather and the ability, experience and confidence levels of those in your group.