10k Run Llanfoist: Scenic Loop by the Brecon Canal

Route Overview & Local Insights

This 9.8km out-and-back route offers a refreshingly flat experience in the otherwise rugged heart of the Brecon Beacons. Starting in Llanfoist, the trail follows the Monmouthshire & Brecon Canal towpath toward the village of Gilwern. With a modest 49m of total ascent, it is an ideal choice for runners looking to maintain a steady tempo or enjoy a recovery run away from the steep climbs of nearby peaks. The terrain is a mix of well-maintained gravel and paved sections, providing a predictable footfall that allows you to focus on the peaceful waters and the dramatic silhouettes of the Blorenge mountain towering above.

Steeped in industrial heritage, this stretch of the canal was once a vital artery for transporting coal and iron from the South Wales Valleys. As you run, you’ll pass beneath historic stone bridges and alongside old lime kilns that whisper stories of the region's 19th-century boom. Llanfoist itself served as a key interchange for the horse-drawn tramroads that connected the mountains to the water. Today, the area has transformed into a tranquil green corridor where kingfishers and dragonflies replace the heavy industry, making it one of the most picturesque and atmospheric running spots in Monmouthshire.