Taff Trail, Penderyn & Cwm Cadlan loop from Pont ar Daf — Bannau Brycheiniog (Brecon Beacons) National Park

Embark on the Taff Trail, Penderyn & Cwm Cadlan loop for a challenging touring cycling experience through the stunning Brecon Beacons National Park. This difficult 28.6-mile (45.9 km) route, with its significant 2594 feet (791 metres) of elevation gain, demands very good fitness and takes around 3 hours and 26 minutes to complete. You'll traverse a mixed terrain of riverside paths, disused railway lines, and forest roads, with some unpaved sections that might require you to push your bike. The loop offers picturesque views of open moorland, reservoirs, and cascading waterfalls, especially near impressive peaks like Pen y Fan and Corn Du.

This hard bike ride is considered a top favorite among local touring cyclists who seek a demanding journey through diverse landscapes. The route integrates sections of the historic Taff Trail, a 55-mile long-distance path from Cardiff to Brecon, adding to its appeal. You will find a rewarding experience combining natural beauty with a physically strenuous ride through an iconic Welsh national park.

For this challenging route, a gravel bike or a similar sturdy cycle is highly recommended due to the varied surfaces. Be prepared for segments that are unpaved and difficult to ride, characteristic of the mountainous landscape within the Brecon Beacons. Starting near Pont ar Daf, the loop offers expansive views and a true test of endurance for those ready to tackle its climbs and mixed terrain.