Coordinates: 53°08′N 4°16′W / 53.14°N 4.27°W / 53.14; -4.27

Caernarfon (/kərˈnɑrvən/; Welsh: [kaɨrˈnarvɔn]) is a Royal town, community and port in Gwynedd, Wales, with a population of 9,611. It lies along the A487 road, on the east banks of the Menai Straits, opposite the Isle of Anglesey. The city of Bangor is 8.6 miles (13.8 km) to the northeast, while Snowdonia fringes Caernarfon to the east and southeast. Caernarvon and Carnarvon are archaic anglicised spellings of Caernarfon, but used rarely.

Abundant natural resources in and around the Menai Straits enabled human habitation in the Caernarfon area during pre-history. The Ordovices were the Celtic tribe documented as living in this region during classical antiquity. The Roman fort called Segontium was established in about the year 80 to subjugate the Ordovices as part of the Roman conquest of Britain. The Romans were victorious and occupied the region until their departure in the 5th century, after which Caernarfon became part of the Kingdom of Gwynedd. In the 11th century, William I, King of England ordered the construction of a motte-and-bailey at Caernarfon, so as to fulfill the Norman invasion of Wales.

The Walls are an Irish rock band. They were formed in 1998 by two ex-members of The Stunning.

Brothers Steve and Joe Wall (previously of The Stunning) returned to Ireland after a two-year failed label stint in London. Their Camden housemate Carl Harms joined the band on guitar and keyboard duties. Drummer Rory Doyle joined soon afterwards. They set up their own label, Earshot Records (later changing it to Dirtbird Records) and recorded and released a string of singles. A remix of one of the album tracks, "Bone Deep", clicked with radio and became a nationwide hit. Many of the songs have featured on a number of TV series and feature films such as Bachelors Walk, Dead Bodies, Goldfish Memory and On the Edge (starring Cillian Murphy).

The Walls heard rumour of a second Slane Castle date for U2 (as the first concert had sold out in hours). They sent four copies of their album to the band. Bono loved it and offered The Walls a support slot. That day the band played to their biggest crowd to date – around 80,000 people. "To the Bright and Shining Sun" was their next single. That June they supported Red Hot Chili Peppers. They spent the next year gigging while building their own studio in Dublin.