List of islands of Wales

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This is a list of islands of Wales, the mainland of which is part of Great Britain, as well as a table of the largest Welsh islands by area. The list includes tidal islands such as Sully Island but not locations such as Shell Island which, though they are termed islands, are in fact peninsulas.

Name Island group/location
Anglesey (Ynys Môn) Irish Sea
Bardsey Island (Ynys Enlli) Gwynedd
Barry Island (Ynys y Barri) Vale of Glamorgan (linked to the mainland during the 1880s)
Caldey Island (Ynys Bŷr) Pembrokeshire
Cardigan Island (Ynys Aberteifi) Ceredigion
Cei Balast Gwynedd
Church Island (Ynys Dysilio) Anglesey
Cribinau (Ynys Cribinau) Anglesey
East Mouse (Ynys Amlwch) Anglesey
Flat Holm (Ynys Echni) Bristol Channel
Gateholm Pembrokeshire
Grassholm (Gwales/Ynys Gwales) Pembrokeshire
Holy Island (Ynys Gybi) Anglesey
Middle Head Gower (tidal island)
Middle Mouse (Ynys Badrig) Anglesey
Midland Isle Pembrokeshire
Mumbles Head Island (Y Mwmbwls) Gower (tidal island)
North Stack (Ynys Arw) Anglesey
Puffin Island (Ynys Seiriol) Anglesey
Ramsey Island (Ynys Dewi) Pembrokeshire
St Catherine's Island (Ynys Catrin) Pembrokeshire
St Margaret's Island (Ynys Farged) Pembrokeshire
St Tudwal's Island East (Ynys Tudwal Fach) St Tudwal's Islands
St Tudwal's Island West (Ynys Tudwal Fawr) St Tudwal's Islands
Salt Island (Ynys yr Halen) Anglesey
Sheep Island Pembrokeshire
The Skerries (Ynysoedd y Moelrhoniaid) Anglesey
Skokholm Island (Ynys Sgoc-holm) Pembrokeshire
Skomer Island (Ynys Skomer) Pembrokeshire
South Stack (Ynys Lawd) Anglesey
Sully Island Vale of Glamorgan (tidal island)
Thorn Island Pembrokeshire[1]
Tusker Rock Vale of Glamorgan
West Mouse (Maen y Bugail) Anglesey
Worms Head (Rhosili) Gower (tidal island)
Ynys Beri Pembrokeshire
Ynys Cantwr Pembrokeshire
Ynys Castell Anglesey
Ynys Dulas Anglesey
Ynys Eilun & Pont yr Eilun Pembrokeshire
Ynys Faelog Anglesey
Ynys Feurig Anglesey
Ynys Gaint Anglesey
Ynys Gifftan Gwynedd
Ynys Gored Goch Anglesey
Ynys Gwelltog Pembrokeshire
Ynys Llanddwyn Anglesey
Ynys Lochtyn Ceredigion
Ynys Moelfre Anglesey
Ynys y Bîg Anglesey

Largest islands in Wales[edit]

Island Area (sq mi) Area (km2)
1 Anglesey 260.37 674.36
2 Holy Island 15.22 39.44
3 Skomer Island 1.12 2.90
4 Ramsey Island 0.99 2.58
5 Caldey Island 0.84 2.18
6 Bardsey Island 0.79 2.06
7 Skokholm 0.41 1.06
8 Flat Holm 0.13 0.33
9 Puffin Island 0.11 0.28
10 The Skerries, Anglesey 0.06 0.17
11 Cardigan Island 0.06 0.15
  • The figure for The Skerries is the total of several islands which are separated from each other at high tide, and some even at low tide.

References[edit]

  1. ^ Mystery buyer for island, 27 July 1999, BBC, accessed 31 August 2008

See also[edit]