We will follow the River Cynon for a short distance then proceed along the Mineral Line between Hirwaun and Penderyn. Morning tea will be at the end of the line. In Penderyn, we follow the track to the waterfalls path initially, then continue towards the base of the Foel. Lunch will be beside the track. We then climb to the crest of the Foel, continuing to the trig point for spectacular views, looking over Bannau Brychyniog, Penderyn, Rhigos and Hirwaun (weather permitting). We follow a grassy path back to the road, returning to Hirwaun once again along the Mineral Line, cutting through the Iron Works to return to the car park.
While classified as M, most of the walk is easy. The pathway along the Cynon is narrow and can be slippery. The climb to the Foel can be stoney, wet or boggy, depending on weather conditions. Much of the walk is on well-formed paths or roads. There is at least one stile, possibly three depending on the route back to the line.