Llyn y Fan Fawr Llyn y Fan Fawr Llyn y Fan Fawr (Welsh: 'lake of the big peak') is a natural lake in the county of Powys, Wales. It lies at the foot of Fan Brycheiniog, the highest peak of the Black Mountain (Welsh"Y Mynydd Du") range within the Brecon Beacons National Park. Created as a result of glacial action, it is one of the largest glacial lakes in southern Wales. The lake is roughly rectangular in shape with its long axis oriented roughly north-south. The surface of Llyn y Fan Fawr lies at about 1815 feet or 605m above sea level. Its primary
Pen-y-Pass youth hostel operated by YHA, and opposite is an information centre and café and a Snowdonia National Park-run car park. There is also a car park at the foot of the Llanberis Pass at Nant Peris as well as others in Llanberis village. There is a park and ride bus service to Pen-y-pass car park, which is the hub of the year-round Sherpa bus network provided by Express Motors and GHA Coaches. This service links Pen-y-Pass to Llanberis, Capel Curig, Betws-y-Coed, Beddgelert, Porthmadog, Rhyd Ddu and Waunfawr. Pen-y-Pass Pen-y-Pass is a mountain pass in Snowdonia, Gwynedd, north-west Wales. It is