Coming to North Wales via the A5 you will pass Llyn Ogwen and over a bridge just as you entr Nant Ffrancon. Under this bridge is this waterfall and you can see sometimes people on a zip wire crossing the waterfall and the gorge.
I only realised people were doing the crossing when I came down Pen-yr-Ole Wen (Mountain to the North) and I didn't have time to get any closer. Well, better luck next time.
Wales (Cymru in the Welsh language) is part of the United Kingdom of Great Britain and Northern Ireland. The major cities are Cardiff, Swansea, Newport and Bangor. The city of St. Davids is the smallest city in the UK with a population around 2000. Wales itself has a population of around 3 million. The Welsh language is spoken by around 20% of the population.