Old Rectory Walking
Llangattock lies to the south of the River Usk opposite Crickhowell town. It is an area of great natural beauty, dominated by the limestone crags of Mynydd Llangatwg. The oldest part of Llangattock is centred round St Catwg’s Church, which dates back to the 11th Century. Some of Britain’s longest cave systems lie concealed beneath this hill, including Ogof y Daren Cilau and Ogof Agen Allwedd together with the shorter though more accessible cave of Eglwys Faen (or ‘stone church’). The great natural amphitheatre formed by the cliffs of Craig y Cilau and the quarried Daren Cilau was designated a national nature reserve on account of a variety of rare plants, notably species of whitebeam endemic to the area. The hollow itself is thought to be a product of both glacial action and a massive rotational landslip during the ice ages.