Llechwedd Slate Caverns - Welcome to Llechwedd Slate Caverns, the most popular visitor attraction in North Wales! Llechwedd Slate Caverns are situated on the A470 between Blaenau Ffestiniog & Dolwyddelan. We are only 3/4mile f
National Showcaves Centre for Wales - Dan yr Ogof, one of the finest and well preserved caves in South Wales. Found at the head of the Swansea Valley, the cave spreads some 17Km into the Black Mountain. The journey through Dan-yr-Ogof is