Climbed on a grey and crowded day as part of a circuit of all four big tops. Started from Blaen Y Glyn.
While bagging other summits in the Beacons.
Lots of times!
I have only ventured to this part of Wales to climb once, and did all four, must do something about it though. I remember caving somewhere around there too but not to sure where, got completely stuck in a keyhole.