Sarn Gynfelyn (or Sarn Cynfelyn) is a shingle spit on the coast of

Cardigan Bay Cardigan Bay () is a large inlet of the Irish Sea, indenting the west coast of Wales between Bardsey Island, Gwynedd in the north, and Strumble Head, Pembrokeshire at its southern end. It is the largest bay in Wales. Geography Cardigan Bay ha ...

, in the county of

Ceredigion Ceredigion (), historically Cardiganshire (, ), is a Principal areas of Wales, county in the West Wales, west of Wales. It borders Gwynedd across the River Dyfi, Dyfi estuary to the north, Powys to the east, Carmarthenshire and Pembrokeshire t ...

, Mid-

Wales Wales ( ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by the Irish Sea to the north and west, England to the England–Wales border, east, the Bristol Channel to the south, and the Celtic ...

, in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

. It is located at Wallog, a few kilometres north of Llangorwen, close to Clarach Bay, south of

Borth Borth () is a village, seaside resort and community in Ceredigion, Mid Wales; it is located 7 miles (11 km) north of Aberystwyth, on the Ceredigion Coast Path. The community includes the settlement of Ynyslas and the population was 1,399 ...

and north of the town of

Aberystwyth Aberystwyth (; ) is a University town, university and seaside town and a community (Wales), community in Ceredigion, Wales. It is the largest town in Ceredigion and from Aberaeron, the county's other administrative centre. In 2021, the popula ...

. It extends, albeit with a single break, for a distance of 11km from the coast to a

reef A reef is a ridge or shoal of rock, coral, or similar relatively stable material lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic component, abiotic (non-living) processes such as deposition (geol ...

known as Patches or Caerwyddno. Similar

landform A landform is a land feature on the solid surface of the Earth or other planetary body. They may be natural or may be anthropogenic (caused or influenced by human activity). Landforms together make up a given terrain, and their arrangement ...

examples are found at several points along the Cardigan Bay coast, known as ''sarnau''. 'Sarn' (pluralised in Welsh as 'sarnau') is typically translated as 'causeway' or 'paved way'. These long banks which extend from the

intertidal zone The intertidal zone or foreshore is the area above water level at low tide and underwater at high tide; in other words, it is the part of the littoral zone within the tidal range. This area can include several types of habitats with various ...

to the subtidal zone are thought to have originated as

glacial A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ...

moraine A moraine is any accumulation of unconsolidated debris (regolith and Rock (geology), rock), sometimes referred to as glacial till, that occurs in both currently and formerly glaciated regions, and that has been previously carried along by a gla ...

In legend

These protruding banks resemble man-made

causeways A causeway is a track, road or railway on the upper point of an embankment across "a low, or wet place, or piece of water". It can be constructed of earth, masonry, wood, or concrete. One of the earliest known wooden causeways is the Sweet Tr ...

and have long been part of the centuries-old legend of

Cantre'r Gwaelod , also known as or , is a legendary ancient sunken kingdom said to have occupied a tract of fertile land lying between Ramsey Island and Bardsey Island in what is now Cardigan Bay to the west of Wales. It has been described as a "Welsh Atla ...

, a fabled sunken kingdom which was lost beneath the waters of Cardigan Bay. According to legend, Sarn Gynfelyn was one of the causeways leading to the lost land. The legend of Cantre'r Gwaelod is comparable to the

deluge myth A flood myth or a deluge myth is a myth in which a great flood, usually sent by a deity or deities, destroys civilization, often in an act of divine retribution. Parallels are often drawn between the flood waters of these myths and the primeval ...

found in nearly every ancient culture, and it has been likened to the story of

Atlantis Atlantis () is a fictional island mentioned in Plato's works '' Timaeus'' and ''Critias'' as part of an allegory on the hubris of nations. In the story, Atlantis is described as a naval empire that ruled all Western parts of the known world ...

. In a 2006 episode of the

BBC The British Broadcasting Corporation (BBC) is a British public service broadcaster headquartered at Broadcasting House in London, England. Originally established in 1922 as the British Broadcasting Company, it evolved into its current sta ...

television documentary ''

Coast A coast (coastline, shoreline, seashore) is the land next to the sea or the line that forms the boundary between the land and the ocean or a lake. Coasts are influenced by the topography of the surrounding landscape and by aquatic erosion, su ...

'', presenter

Neil Oliver Neil Oliver (born 21 February 1967) is a Scottish television presenter, author, and conspiracy theorist. He has presented several documentary series on archaeology and history, including '' A History of Scotland'', ''Vikings'' and ''Coast''. H ...

visited Sarn Gynfelyn to explore the legend of Cantre'r Gwaelod. The programme also featured the remains of the submerged forest at

Ynyslas ; ) is a small village about 1.5 miles north of Borth and 8 miles north of Aberystwyth, within the county of Ceredigion, Wales. It is sandwiched between a long sandy beach in Cardigan Bay and the beach in the Dyfi Estuary. The area between the ...

, some north of Sarn Gynfelyn, which is also associated with the legend. The vista of dead oak, pine, birch, willow and hazel tree stumps preserved by the acid

anaerobic Anaerobic means "living, active, occurring, or existing in the absence of free oxygen", as opposed to aerobic which means "living, active, or occurring only in the presence of oxygen." Anaerobic may also refer to: *Adhesive#Anaerobic, Anaerobic ad ...

conditions in the soil is revealed at

low tide Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables c ...

and is estimated to be about 5000 years old.

References

External links

Photograph of Sarn Gynfelyn, 1999
(Skyworks) * Reefs of Ceredigion Cardigan Bay Reefs of the Atlantic Ocean {{Ceredigion-geo-stub

In legend

See also

References

External links