Ynys Dulas

Ynys Dulas

Ynys Dulas ("Dulas Island") is a small island, located off the north-east coast of Anglesey ("Ynys Mon"), Wales. It is the most eastern part of the parish of Llaneilian.

The island is situated about a mile and a half offshore, within Dulas Bay. The size of the island depends on the tide with a maximum length of 623 metres and width of 207 metres against a minimum of 184 metres by 35 metres. It has a maximum area of 18.3 acres. The island is mainly rocky but at low tide sand is exposed, most noticeably on the southern part of the island where it separates the main rock formation from two smaller ones named Garnog (Welsh: "Hooves"). Seals are often spotted living on and around the island [ [http://www.ccw.gov.uk/generalinfo/index.cfm?Action=View&RID=143&subject=Marine CCW report on seals in North Wales] ] (hence it is also known locally as Seal Island) but it is too small for human inhabitation. There is also very little flora on the island due to its rocky composition. However on lower lying parts of the island, exposed at low tide, seaweeds and other sea plants live. A smaller rock called Garreg Allan ("The Outer, Expelled or Furthest Stone") is found about 100 m behind the island but is not visible with the naked eye from the shore.

A raised shelf of seabed about 1.5km long reaches out a little beyond Garreg Allan, meaning that the sea around it is no more than 5 metres deep. This is followed by a drop to water much deeper (over 20 metres deep) which indicates that Ynys Dulas may have been part of a recently (geologically speaking) submerged headland [ [http://www.magic.gov.uk/website/magic/viewer.htm?startTopic=magadminareas&xygridref=248000,386800&Title=Brynrefail&startScale=5000 Bathymetric Map of Dulas Bay showing raised shelf reaching to Ynys Dulas] ] . The island also marks the termination of an old limestone headland which geologically separated Dulas Bay from Lligwy Bay and Red Wharf Bay.

Upon the island is cylindrical structure with a cone shaped top [ [http://www.islandofchoice.com/upload/public/attachments/11/moelfrecircularwalk.pdf PDF file on the Dulas Bay area] ] , built in 1824 by the Lady of Llysdulas Manor to store food and provide shelter for shipwrecked seamen. There is evidence from a map drawn up in September 1748 by Lewis Morris that the island was once known not as Ynys Dulas but Ynys Gadarn ("Strong or Mighty Island").Fact|date=August 2008

References


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