Llyn y Fan Fach of the Lady of the lake in Welsh and English. Llyn y Fan Fach Llyn y Fan Fach (Welsh meaning "Lake of the small hill") is a lake of approximately 10 hectares on the northern margin of the Black Mountain in Carmarthenshire, South Wales and lying within the Brecon Beacons National Park. The lake lies at an altitude of approximately , immediately to the north of the ridge of the Carmarthen Fans. It is the smaller of two lakes within this mountain massif: the slightly larger Llyn y Fan Fawr is about to the east. The lake is overlooked by
Pen y Garn Pen y Garn Pen y Garn is a mountain in the Cambrian Mountains, Mid Wales standing at 611 metres above sea level. Pen y Garn tops a 500–600 m high plateau, situated on which is the controversial Cefn Coch wind farm. The summit contains a very large shelter cairn hollowed out from the remains of an ancient burial cairn. The summit also has a trig point. The wind turbines are very near the summit. To the north some 10 km, the whole Plynlimon range can be seen, including the summits of Y Garn, Pen Pumlumon Fawr, Pen Pumlumon Llygad-bychan and