Penmaen-Bach mountain from the Dwygyfylchi road
Dwygyfylchi shown within Conwy
|Sovereign state||United Kingdom|
Dwygyfylchi (Welsh pronunciation: [dʊɨɡəˈvəlχi], approximately as dwee-gə-VUUL-khee) is a village in Conwy County Borough, Wales. The ward of Dwygyfylchi contains the nearby settlement of Penmaenmawr and has a population of 3,857.
Origin of the name 
The name Dwygyfylchi means the meeting of the two semi circles, referring to the two promontories of Penmaen-Bach and Penmaen-Mawr.
Approximately half of Dwygyfylchi forms the most northern tip of the Snowdonia National Park. Half a mile to the south-east of the main village lies Capelulo, which lies at the foot of the picturesque Sychnant Pass, which connects Dwygyfylchi to Conwy. The Pensychnant Conservation Centre and Nature Reserve is nearby. Two headlands separate Dwygyfylchi & Penmaenmawr from its neighbours. Towards the east Penmaen-bach divides Dwygyfylchi from the town neighbouring Conwy Morfa and the Conwy Valley leading up to Betws-y-Coed. To the West the larger headland of Penmaen-mawr divides them from the town of Llanfairfechan and the wider coastal plain extending to Bangor. To the south an arc of hills and uplands extends east to west from the latter to Penmaen Mawr, beginning with Yr Allt Wen above Dwygyfylchi, Bwlch Sychnant (the old road crosses this pass to Conwy) and Pen-sychnant at Capelulo. The rounded hill of Foel Lys, Gwddw Glas (Green Gorge), Bryn Derwydd and the head of Cwm Graiglwyd and finally Penmaen-mawr itself. The coastal plain itself is nearly divided by Trwyn-yr-Wylfa, which also marks the boundary between the "Hen Bentra" or "Old Village" of Dwygyfylchi and Capelulo in the east and Pant-yr-afon and Penmaenan in the west . Finally two small rivers flow through the area. The first and larger, Afon Gyrrach, runs for about 4 miles (6.4 km) from the northern slopes of Tal-y-Fan to the sea near Penmaenbach, passing through Nant Ddaear-y-llwynog (The Fairy Glen) and the old villages of Dwygyfylchi and Capelulo. The second, Afon Pabwyr, runs down from wooded Cwm Graiglwyd then under the town centre, Pant-yr-afon, to the beach.
The surrounding landscape is dotted with palaeolithic, mesolithic, neolithic, bronze age and iron age structures, including cromlechs, standing stones, stone circles and hill forts. Notable iron age hill forts in the area are Caer Seion, at the summit of Conwy mountain, and nearby Braich-y-Dinas, one of the largest Iron Age hill-forts in Europe (and comparable with Tre'r Ceiri near Trefor on the Llŷn peninsula), at the summit of Penmaenmawr. Nothing remains of Braich-y-Dinas, however, as the last remnants were destroyed in the 1920s. The 1868 National Gazetteer of Great Britain and Ireland notes: "In this neighbourhood are a great number of antiquities, consisting of cromlechs and single upright stones, the remains of a British camp, with ditches and ramparts, &c."
Dark-Ages, Mediaeval and Early Modern period 
About a mile or so north of Dwygyfylchi & Penmaenmawr lies Llys Helig. This has been said to have been the palace of Prince Helig ap Glanawg (also spelled Glannog) who lived in the 6th century Prince Helig ap Glanawg owned a large area of land between the Great Orme's Head near Llandudno and the Menai Strait off the north coast of Gwynedd. This area was inundated by the sea which has given rise to the legend of the drowned kingdom. The legend states the remains of Llys Helig, said to be his palace, can be seen at exceptionally low tides, this being near the Conwy channel, about a mile or so off the coast at Penmaenmawr. The earliest known use of the name Llys Helig regarding this rock formation is the Halliwell Manuscript which is believed to date to around the beginning of the 15th century, nine centuries later. The Llys Helig rock formation is a glacial moraine left behind by previous subsequent ice ages. There is a fish weir south of this which tradition dates to the beginning of the 6th century which was used up until the early 20th century. The sea level was low enough around 1600 AD to make the claims of Sir John Wynne of Gwydir feasible.
The Church in Wales parish church, dedicated to St Gwynin, was built between 1888 and 1889. The pews of the present church were made from the roof timbers of the earlier church building constructed in 1760, the foundation stone of which was preserved and mounted on the vestry wall of the present church, where it can still be seen. St Gwynin's Gwylmabsant (Patronal Festival) is December 31. Dwygyfylchi is also associated with Saint Ulo, Capelulo being at the foot of Sychnant and reputedly the site of an early medieval church. In 1851, in addition to the parish church, with a congregation of 80 and 20 scholars, the village had also a Wesleyan Methodist chapel, at Penmaenmawr (erected 1841), Pen y cae Chappel (Welsh Calvinistic Methodist (erected 1818, rebuilt 1840) and the Horeb Nonconformist (Independent) chapel (erected 1813).
Amenities, clubs and societies 
Penmaenmawr Golf Club has a 9-hole course located between Dwygyfylchi and Capelulo. Near to this is Dwygyfylchi Bowling Club. Penmaenmawr Phoenix F.C. plays in the Clwyd Premier League and is located between Dwygyfylchi and Penmaenmawr.
At the top of the Sychnant Pass is Pen Sychnant Nature Reserve, a conservation area of 12 acres (5 ha) with mature shrubs and woodland.
Arriva Cymru operates services 5 and X5 every 15 minutes between Caernarfon and Llandudno; eastbound, service X5 serves Deganwy and Maesdu and service 5 serves St Gwynan's (for Dwygyfylchi) and Craig-y-don; westbound, both services serve Bangor and Y Felinheli (Portdinorwic).
Dwygyfylchi lies on the route of the A55 Expressway providing access at Junction 16 and at 16A to Penmaenmawr to and from the rest of the north coast. A mountain route through Capelulo links the towns to Conwy via Sychnant.
- Images from Geograph
- "Pensychnant Conservation Centre and Nature Reserve" at V
- Cyril Fox and Bruce Dickins, ed. (1950). The Early Cultures of North-West Europe. Cambridge University Press. p. 230.
- Bird, Eric (2010). Encyclopedia of the World's Coastal Landforms. Springer. ISBN 978-1402086380.
- Steers, J.A. (1969). The Sea Coast. HarperCollins. ISBN 978-0002132046.
- Bannerman, N. V. Campbell. "Flood, Folklore and Fishweirs". Retrieved 11 January 2013.
- Religious census of 1851: A Calendar of the returns relating to Wales, Vol 11, North Wales. Ieuan Gwynedd Jones (ed), UWP, 1981.
|Wikimedia Commons has media related to: Dwygyfylchi|
- Dwygyfylchi at genuki.org.uk
- "Scenes around Dwygyfylchi, Caernarfonshire (1967)" from www.jlb2011.co.uk - links to name pronunciation example
- Penmaenmawr & Dwygyfylchi History
- Penmaenmawr and Dwygyfylchi Community Website
- Visit the Sychnant Pass
- Penmaenmawr Community Centre
- Penmaenmawr Golf Club
- Clwyd Football League