Just goes to show. You live in South Wales for years and think you know your patch quite well. When suddenly you discover somewhere new. This was the case when looking at fellow flickr'r
Vale Boy's photostream. Here was this impressive waterfall that I knew nothing about! I had to go a see it for myself. This is why I love flickr, you're always finding new places, and some quite close to home!
Google Earth co-ordinates
51°43'8.03"N 3°16'18.19"W 