Great Britain’s largest islands – poster now available

If you loved our data visualisation showing Great Britain’s largest islands – great news, it’s now available to buy. In case you missed it at the time, our GeoDataViz team worked with Alasdair Rae at the University of Sheffield to explore Britain’s largest islands. They found that there are 82 English, Scottish and Welsh islands larger than 5km2 and created this beautiful poster to showcase their work.

We were overwhelmed with the fantastic response to the poster and inundated with hundreds of questions, many asking about missing islands. As we were only looking at Great Britain’s islands, this didn’t include Northern Ireland’s islands, the Isle of Man or the Channel Islands. You can see more about the difference between Great Britain, the United Kingdom and our Crown Dependencies in this blog. There are many more islands around Great Britain smaller than 5km2 – they’re just not included on the poster.

We also had a lot of requests for a printed poster, and our friends at the University of Sheffield have made this happen. There are a limited number of posters available, at A1 size which you can buy on their website for £15.

Win a poster

We have 3 copies to giveaway. For the chance to win answer this question:

Holy Island is the 30th largest island shown on our poster, with an area of 35km2 and 7,400 residential addresses. Is this Holy Island off the coast of England or Wales?

Post your answer on the blog by midnight on Friday 2 November.

243 Responses

    1. Gordon Ireland

      This is holy island off the coast of Wales. Different shape from the “English” holy island.

      Good luck everyone!

  1. Chris Wood

    The one you’ve shown the outline of is the one off the coast of Wales (well, off the coast of Anglesey… does that make it a meta-island: an island of an island?!)

  2. Thomas Nichol

    As a Northumberland resident, I can tell you that it is not off the coast of England, so the answer must be Wales!

  3. This Holy Island is off the coast on Wales! 🙂

    There are “Holy Islands” in the UK. There’s this one, and there’s another up in Northumbria that’s got Lindisfarne Castle on it.

  4. Lucy Kissick

    This Holy Island is off the coast of Wales! There’s another one up by Lindisfarne but it’s the wrong shape. 🙂

  5. Andrew Carmichael

    That Holy Island is off the west coast of Anglesey so it’s off the coast of Wales. There’s also a Scottish Holy Island of the east coast of Arran, but it’s too small for this poster.

  6. Carol Gunn

    Answer : Holy Island off the coast of Wales – researching the question has increased my knowledge – thank you. Looks a great place for a visit.

  7. Peter Russell

    I was taught that Holy Island in Northumberland was the shape of an AXE – so your outine is the Holy Island off the coastline of WALES.

    Please note there is also a Holy Isle off the coast of the Isle of Arran.

  8. Rita Baker

    Wales, I went to the Holy Island of Lindisfarne the past 3 years for the archaeological dig there and its certainly not that big and has way less inhabitants – of course human ones I mean – plenty of Seals about…:-)

  9. Nathan Davies

    Holy Island off the coast of Anglesey, North Wales. I’m sailing to Holyhead from Liverpool in about an hour.

    If you could send me the map quickly it might help me get there in one piece.

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