Pen y Fan the Cambrian Mountains, Exmoor, the town of Brecon and much of Mid Wales and the South Wales Valleys, and in a north-easterly direction the Clee Hills in South Shropshire can be seen. Tenth Man Down. (novel) Author: Chris Ryan Pen y Fan Pen y Fan () is the highest peak in south Wales, situated in the Brecon Beacons National Park. At above sea-level, it is also the highest British peak south of Cadair Idris in Snowdonia. The twin summits of Pen y Fan and Corn Du at 873 m (2,864 ft) were formerly referred to as Cadair Arthur or 'Arthur's
Pen y Fan the Welsh Government. Toilet facilities are available at the site. A footpath connects the Storey Arms centre, bus stops and the Pont ar Daf car park to the path leading to Corn Du and Pen y Fan. The summit lies on a ridge stretching from Talybont Reservoir in the east, to the A470. About to the south-west lies the subsidiary top of Corn Du, beyond which the terrain drops at a moderate angle to the subsidiary top of Y Gyrn then more steeply to the Storey Arms on the A470. To the east, the ridge drops steeply to the col