Ynys Dulas (Welsh for 'Dulas Island') is a small island located off the north-east coast of Anglesey (Welsh: Ynys Môn), Wales. It marks 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 (74,000 m2). 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 ('Hooves'). Seals are often spotted living on and around the island,[1] but it is too small for human inhabitation. There is also very little flora on the island owing 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.
Ynys Dulas up close
A raised shelf of seabed about 1.5 km 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.[2] The island also marks the termination of an old limestone headland which geologically separated Dulas Bay from Lligwy Bay and Red Wharf Bay.
The island has a rescue tower that once stored food and provided shelter for shipwrecked seamen. The cylindrical, stone-cone-shaped structure was completed in 1824 by Colonel James Hughes of Llys Dulas Manor.[3] A map drawn up in September 1748 by Lewis Morris shows the island named as Ynys Gadarn (Strong or Mighty Island) not Ynys Dulas.[4]
^CCW report on seals in North Wales Archived 2006-04-26 at the Wayback Machine
^Bathymetric Map of Dulas Bay showing raised shelf reaching to Ynys Dulas
^Video on the island showing the stone giving the date of the tower
YnysDulas (Welsh for 'Dulas Island') is a small island located off the north-east coast of Anglesey (Welsh: Ynys Môn), Wales. It marks the most eastern...
the island of Anglesey include the Old Welsh Ynys Dywyll (Shady or Dark Isle) for its former groves and Ynys y Cedairn (Isle of the Brave) for its royal...
Dulas Bay (Welsh: Bae Dulas) is a small bay on the north east coast of Anglesey (Ynys Môn), north Wales, forming the boundary between Llaneilian and Moelfre...
Isle of Man visible on the horizon), while YnysDulas lies off the North East coast of the island, east of Dulas Bay. The parish contains the remains of...
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co-star in French and Saunders Albert Owen (born 1959) politician, MP for Ynys Môn from 2001 to 2019. Kevin Johnson (born 1960) is a managing partner at...
Council. – map of part of Anglesey Area of Outstanding Natural Beauty "Map B Ynys Môn – Isle of Anglesey" (PDF). Wales Coast Path. Natural Resources Wales...
grandparents at Llanfawr as a child. Rhun ap Iorwerth (born 1972), MS for Ynys Môn resides in the village Meinir Gwilym (born 1983), singer/songwriter,...
River Cefni, after which it is named. Its attractions include the Oriel Ynys Môn museum, which details the history of Anglesey and houses collections...
of beaches including: 'Traeth Crigyll' that stretches from Pwll Cwch to Ynys Wellt (leading then to Traeth Cymyran), sandy beaches interspersed by rocks...
its area instead becoming a community. District-level functions passed to Ynys Môn-Isle of Anglesey Borough Council, which in 1996 was reconstituted as...
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Beaumaris". Retrieved 16 February 2016. "Ysgol David Hughes, Porthaethwy, Ynys Mon". ysgoldavidhughes.org. Retrieved 17 September 2016. "Welsh Language...
of Anglesey electoral boundary changes Trearddur became part of a larger Ynys Gybi ward, which includes part of Holyhead. At the local level, the electorate...
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the designation Baroness Smith of Llanfaes, of Llanfaes in the County of Ynys Môn when introduced as a life peer in the House of Lords in 2024. Carmen...
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Cemaes in Llanbadrig community was 1,357. The most northerly point in Wales, Ynys Badrig, is nearby. Cemaes is a fishing port and tourist resort, and is known...
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North Stack West Mouse Ynys Benlas Ynys Castell YnysDulasYnys Feurig Ynys Gaint Ynys Gored Goch Ynys Llanddwyn Ynys Moelfre Ynys y Bîg Topics Communities...
done and the lifeboat started its return journey, from a point close to Ynys Llanddwyn. The lifeboat capsized and 5 of the 13 man crew were lost, and...
North Stack West Mouse Ynys Benlas Ynys Castell YnysDulasYnys Feurig Ynys Gaint Ynys Gored Goch Ynys Llanddwyn Ynys Moelfre Ynys y Bîg Topics Communities...
"Community population 2011". Retrieved 19 May 2015. OS Landranger 114: Anglesey / Ynys Môn. Ordnance Survey. 2016. ISBN 978-0-319-26212-2. "Bodedern Athletic Football...
British national grid reference system used by the Ordnance Survey. "Sir Ynys Mon – Isle of Anglesey". Ordnance Survey. Retrieved 21 February 2023. "Isle...
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