Pen y Fan 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 Seat'. The mountain and surrounding area are owned by the National Trust whose work parties attempt to combat the erosion caused by the passage of thousands of feet up and down this most popular of South Wales' peaks. The
Pen-y-Gwryd George Mallory in 1914, and actor Jack Hawkins during the filming of "The Long Arm" on location in Snowdonia. Pen-y-Gwryd Pen-y-Gwryd is a pass at the head of Nantygwryd and Nant Cynnyd rivers close to the foot of Snowdon in Gwynedd, Wales. The area is located at the junction of the A4086 from Capel Curig to Llanberis and Caernarfon and the A498 from Beddgelert and Nant Gwynant about a mile from the head of the Llanberis Pass. It is close to the boundary with Conwy county borough in northern Snowdonia. The famous mountaineering hostelry, "Pen-y-Gwryd Hotel", is located in the