This is another new walk for me, in a delightful area close to Swansea. The route we took went round the Lower Lliw reservoir then along the tarmac track/road to the Upper reservoir. We parked at the lower reservoir, which is easy to find by following the reservoir signs from junction 46 of the M4. The car park has public toilets and a cafe that made an irresistable stopping-off point on the way back; very good.
We set off across the dam and walked up the far side of the Lower reservoir, a very gentle and obvious path route. At the top of the reservoir there is a wooden footbridge followed by a sharp but not very long climb up stone steps to the road that takes you to the Upper reservoir. We took a return route going back down this road and then following a path through the woods along the return side of the Lower reservoir. It is possible to extend the walk beyond the upper reservoir, following the left hand bank as you ascend onto the moors, to Penlle’r Castle. These castle ruins form the starting point for the Gower Way, a walking path that goes through Gower and ends at Rhossilli.
We had delightful weather and enjoyed this 3-hour peaceful walk and the plants and wildlife. The Lower reservoir was first built in 1863 by Swansea Waterworks but was reconstructed in the late 1970s. The upper one was built in 1892 and contains some impressively robust Victorian engineering works including the Grade 2 listed valve tower and bridge