A lovely walk, with beautiful views where you can walk back in time and discover the rich industrial heritage and internationally important geology of this unique site. Situated right on the edge of the South Wales coalfield this secluded valley gives access to rocks that would only be found deep below the valleys of South Wales. Discover coal seams, iron rich rocks and wonderful plant fossils that tell the story of ancient environments.

Start in Ponwalby Village and the trail heads south, passing beneath the viaduct. It then follows the river upstream through a narrow gorge dominated by the large Farewell Rock crags. The path meanders away from the river itself to explore the impressive geological features, taking you along a suite of interpretation panels to highlight further points of interest.

Wildlife Watching: The area is home to a wealth of wildlife, such as Common Lizards, Slow-worms and Green Woodpeckers.