Llyn y Fan Fawr Brecon Beacons, 11 April 2010 at 12:46 hours. My high level walk through the hills of the Camarthen Fans ended here when I dropped down to this small lake. The ridge of the Fan Brycheiniog towers above. My next destination was the Dan yr Ogof caves where my lift was waiting. Camera details: 10-20mm, 1/2 sec at f / 22