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Giant's Causeway and Causeway Coast
Native names Clochán an Aifir/Clochán na bhFomhórach (Irish) Tha Giant's Causey (Ulster Scots)
The Giant's Causeway
Location	County Antrim, Northern Ireland
Coordinates	55°14′27″N 6°30′42″W / 55.24083°N 6.51167°W / 55.24083; -6.51167
UNESCO World Heritage Site
Official name	The Giant's Causeway and Causeway Coast
Type	Natural
Criteria	(vii), (viii)
Designated	1986 (10th session)
Reference no.	369
Region	Europe
Location of Giant's Causeway and Causeway Coast in Northern Ireland

The Giant's Causeway (Irish: Clochán an Aifir) is an area of approximately 40,000 interlocking basalt columns, the result of an ancient volcanic fissure eruption. It is located in County Antrim on the north coast of Northern Ireland, about three miles (4.8 km) northeast of the town of Bushmills.

It was declared a World Heritage Site by UNESCO in 1986 and a national nature reserve by the Department of the Environment for Northern Ireland in 1987. In a 2005 poll of Radio Times readers, the Giant's Causeway was named the fourth-greatest natural wonder in the United Kingdom.

The tops of the columns form stepping stones that lead from the cliff foot and disappear under the sea. Most of the columns are hexagonal, although some have four, five, seven, or eight sides. The tallest are approximately 12 metres (39 ft) high, and the solidified lava in the cliffs is 28 metres (92 ft) thick in places.

Much of the Giant's Causeway and Causeway Coast World Heritage Site is owned and managed by the National Trust. It is one of the most popular tourist attractions in Northern Ireland, receiving more than 998,000 visitors in 2019. Access to the Giant's Causeway is free of charge: it is not necessary to go via the visitor centre that charges a fee. The remainder of the site is owned by the Crown Estate and several private landowners.

Geology

Around 50 to 60 million years ago, during the Paleocene Epoch, Antrim was subject to intense volcanic activity, when highly fluid molten basalt intruded through chalk beds to form an extensive volcanic plateau. As the lava cooled, contraction occurred. Horizontal contraction fractured in a similar way to drying mud, with the cracks propagating down as the mass cooled, leaving pillarlike structures that also fractured horizontally into "biscuits". In many cases, the horizontal fracture resulted in a bottom face that is convex, while the upper face of the lower segment is concave, producing what are called "ball and socket" joints. The size of the columns was primarily determined by the speed at which lava cooled. The extensive fracture network produced the distinctive columns seen today. The basalts were originally part of a great volcanic plateau called the Thulean Plateau that formed during the Paleocene.

Geological heritage site

In respect of its key role in the development of volcanology as a geoscience discipline, and notably the origin of basalt, the Palaeocene rocks of the Giant's Causeway and Causeway Coast were included by the International Union of Geological Sciences (IUGS) in its assemblage of 100 "geological heritage sites" around the world in a listing published in October 2022.

Legend

According to legend, a form of 'geomyth', the columns are the remains of a causeway built by a giant. The story goes that the Irish giant Fionn mac Cumhaill (Finn MacCool), from the Fenian Cycle of Gaelic mythology, was challenged to a fight by the Scottish giant Benandonner. Fionn accepted the challenge and built the causeway across the North Channel so that the two could meet. In one version of the story, Fionn defeats Benandonner. In another, Fionn hides from Benandonner when he realises that his foe is much bigger than he is. Fionn's wife, Sadhbh, disguises Fionn as a baby and tucks him in a cradle. When Benandonner sees the size of the "baby", he reckons that its father, Fionn, must be a giant among giants. He flees back to Scotland in fright, destroying the causeway behind him so that Fionn would be unable to chase him down. Across the sea, there are identical basalt columns (a part of the same ancient lava flow) at Fingal's Cave on the Scottish isle of Staffa, and it is possible that the story was influenced by this.

Overall, in Irish mythology, Fionn mac Cumhaill is not a giant, but a hero with supernatural abilities, contrary to what this particular legend may suggest. In Fairy and Folk Tales of the Irish Peasantry (1888), it is noted that, over time, "the pagan gods of Ireland grew smaller and smaller in the popular imagination until they turned into the fairies; the pagan heroes grew bigger and bigger until they turned into the giants". There are no surviving pre-Christian stories about the Giant's Causeway, but it may have originally been associated with the Fomorians (Fomhóraigh); the Irish name Clochán na bhFomhóraigh or Clochán na bhFomhórach means "stepping stones of the Fomhóraigh". The Fomhóraigh are a race of mythological beings in Irish mythology who were sometimes described as giants and who may have originally been deities among a pre-Christian pantheon.

Letitia Elizabeth Landon comments on these mythological associations in her notes to The Giant's Causeway., a poetical illustration to a painting by Thomas Mann Baynes.

Tourism

The Bishop of Derry visited the site in 1692. The existence of the causeway was announced to the wider world the following year by the presentation of a paper to the Royal Society from Sir Richard Bulkeley, a fellow of Trinity College, Dublin. The Giant's Causeway received international attention when Dublin artist Susanna Drury made watercolour paintings of it in 1739; they won Drury the first award presented by the Royal Dublin Society in 1740 and were engraved in 1743. In 1765, an entry on the causeway appeared in volume 12 of the French Encyclopédie, which was informed by the engravings of Drury's work; the engraving of the "East Prospect" appeared in a 1768 volume of plates published for the Encyclopédie. In the caption to the plates, French geologist Nicolas Desmarest suggested, for the first time in print, that such structures were volcanic in origin.

The site first became popular with tourists during the nineteenth century, particularly after the opening of the Giant's Causeway Tramway. Only after the National Trust took over its care in the 1960s were some of the vestiges of commercialism removed. Dom Pedro II, Emperor of Brazil, visited the site on 9 July 1877 as part of a largely unpublicised three-day visit to Ireland.

Visitors may walk over the basalt columns that are at the edge of the sea, a half-mile walk from the entrance of the site.

Visitor centre

The causeway was without a permanent visitor centre between 2000 and 2012, as the previous building, built in 1986, burned down in 2000. While preliminary approval was given for a publicly funded (but privately managed) development by then Environment Minister and Democratic Unionist Party (DUP) member Arlene Foster in 2007, the public funding was frozen due to a perceived conflict-of-interest between the proposed private developer and the DUP. Ultimately, the private developer dropped a legal challenge to the publicly funded plan, and the new visitor centre was officially opened by 2012. Its construction was funded by the National Trust, the Northern Ireland Tourist Board, the Heritage Lottery Fund and public donations. Since opening, the new visitor centre has garnered mixed reviews from those visiting the causeway, for its pricing, design, contents, and placement across the causeway walk descent. In 2018, the visitor centre was visited by 1,011,473 people.

There was some controversy regarding the content of some exhibits in the visitor centre, which refer to the Young Earth Creationist view of the age of the Earth. While these inclusions were welcomed by the chairman of the Northern Irish evangelical group, the Caleb Foundation, the National Trust stated that the inclusions formed only a small part of the exhibition and that the Trust "fully supports the scientific explanation for the creation of the stones 60 million years ago". An online campaign to remove creationist material was launched in 2012, and following this, the Trust carried out a review and concluded that they should be amended to have the scientific explanation on the origin of the causeway as their primary emphasis. Creationist explanations are still mentioned, but presented as a traditional belief of some religious communities rather than a competing explanation for the origin of the causeway.

Notable features

Some of the structures in the area, having been subject to several million years of weathering, resemble objects, such as the Organ and Giant's Boot structures. Other features include many reddish, weathered low columns known as Giant's Eyes, created by the displacement of basalt boulders such as the Shepherd's Steps, the Honeycomb, the Giant's Harp, the Chimney Stacks, the Giant's Gate, and the Camel's Hump.

• The Giant's Boot
• Basalt columns
• The Chimney Stacks

Flora and fauna

The area is a haven for seabirds, such as fulmar, petrel, cormorant, shag, redshank, guillemot, and razorbill, while the weathered rock formations host numerous plant types, including sea spleenwort, hare's-foot trefoil, vernal squill, sea fescue, and frog orchid. A stromatolite colony was reportedly found at the Giant's Causeway in October 2011 – an unusual find, as stromatolites are more commonly found in warmer waters with higher saline content than that found at the causeway.

Similar structures

Basalt columns are a common volcanic feature. They occur on many scales and with some variations in formation.

Transport access

The Belfast-Derry railway line run by Northern Ireland Railways connects to Coleraine and along the Coleraine-Portrush branch line to Portrush. Locally, Ulsterbus provides connections to the railway stations. There is a scenic walk of 7 miles (11 km) from Portrush alongside Dunluce Castle and the Giant's Causeway and Bushmills Railway.

See also

• List of individual rocks
• List of tourist attractions in Ireland
• Ireland portal
• Volcanoes portal

References

1. ^ "Clochán an Aifir / Giant's Causeway – Placenames Database of Ireland". Placenames Commission. Archived from the original on 8 September 2014. Retrieved 8 September 2014.
2. "The Crack: Yin giant step for mankind" The News Letter. Retrieved 16 October 2011.
3. ^ "Giant's Causeway and Causeway Coast". UNESCO World Heritage Centre. Archived from the original on 19 January 2008. Retrieved 21 June 2009.
4. Jack Challoner; John Farndon; Rodney Walshaw (2004). Rocks, Minerals and the Changing Earth. Southwater. p. 19. ISBN 9781842159750. Archived from the original on 25 January 2024. Retrieved 15 May 2016.
5. "Caves win 'natural wonder' vote" Archived 1 August 2017 at the Wayback Machine. BBC, 2 August 2005. Retrieved 10 December 2006.
6. Meng, Qingxiang; Yan, Long; Chen, Yulong; Zhang, Qiang (9 November 2018). "Generation of numerical models of anisotropic columnar jointed rock mass using modified centroidal Voronoi diagrams" (PDF). Symmetry. 10 (11): 618. Bibcode:2018Symm...10..618M. doi:10.3390/sym10110618.
7. "Giant's Causeway remains Northern Ireland's Top Attraction" (Press release). Northern Ireland Tourist Board. 18 August 2008. Archived from the original on 14 July 2011. Retrieved 19 March 2009.
8. "Visits Made in 2022 to Visitor Attractions in Membership with ALVA". Association of Leading Visitor Attractions. Archived from the original on 13 April 2015. Retrieved 23 October 2020.
9. "Giant's Causeway: Public right of way to be protected". BBC News. 14 March 2018. Archived from the original on 30 August 2018. Retrieved 16 August 2018.
10. "University of Toronto (2008, December 25). Mystery of Hexagonal Column Formations". Archived from the original on 5 February 2019. Retrieved 28 February 2018.
11. Geoffroy, Laurent; Bergerat, Françoise; Angelier, Jacques (September 1996). "Brittle tectonism in relation to the Palaeogene evolution of the Thulean/NE Atlantic domain: a study in Ulster". Geological Journal. 31 (3): 259–269. doi:10.1002/(SICI)1099-1034(199609)31:3<259::AID-GJ711>3.0.CO;2-8. Archived from the original on 13 August 2011. Retrieved 10 November 2007.
12. "The First 100 IUGS Geological Heritage Sites" (PDF). IUGS International Commission on Geoheritage. IUGS. Archived (PDF) from the original on 27 October 2022. Retrieved 3 November 2022.
13. "The Giant's Causeway". The Dublin Penny Journal, issue 5 (1832), p.33
14. Jones, Richard. Myths and Legends of Britain and Ireland. New Holland Publishers, 2006. p.131
15. Formation of basalt columns / pseudocrystals Archived 7 November 2007 at the Wayback Machine
16. "Giants" Archived 25 April 2013 at the Wayback Machine. Fairy and Folk Tales of the Irish Peasantry (1888). Sacred-Texts.com.
17. Lyle, Paul. Between Rocks and Hard Places: Discovering Ireland's Northern Landscapes. The Stationery Office, 2010. p.3
18. Monaghan, Patricia. The Encyclopedia of Celtic Mythology and Folklore. Infobase Publishing, 2004. p.198
19. Landon, Letitia Elizabeth (1831). "picture". Fisher's Drawing Room Scrap Book, 1832. Fisher, Son & Co. Archived from the original on 11 November 2022. Retrieved 11 November 2022.Landon, Letitia Elizabeth (1831). "poetical illustration". Fisher's Drawing Room Scrap Book, 1832. Fisher, Son & Co. Archived from the original on 11 November 2022. Retrieved 11 November 2022.
20. Arnold, Bruce (2002). Irish Art: A Concise History. New York: Thames & Hudson. p. 62. ISBN 0-500-20148-X.
21. "Susanna Drury, the Causeway, and the Encyclopédie, 1768" Archived 28 September 2006 at the Wayback Machine. Lindahall.org. Retrieved 14 March 2007.
22. Logan, John (4 November 2020). "An Emperor's Secret Visit to the Causeway". ccght.org. Causeway Coast and Glens Heritage Trust. Retrieved 5 July 2024.
23. "Some Portrush/Brazil Connections..." (PDF). niarchive.org. Northern Ireland archive. 1 March 2023. Retrieved 5 July 2024.
24. "Dom Pedro II in Ireland". bndigital.bn.gov.br. BN Digital Brasil. Retrieved 5 July 2024.
25. "Investigation into Causeway blaze". BBC News. 30 April 2000. Archived from the original on 14 April 2004. Retrieved 12 September 2007.
26. "Developer set to get Causeway nod". BBC News. 10 September 2007. Archived from the original on 19 September 2020. Retrieved 10 September 2007.
27. "Developer's DUP link "no bearing"". BBC News. 11 September 2007. Archived from the original on 11 January 2009. Retrieved 12 September 2007.
28. "Causeway must be public ; council". BBC News. 12 September 2007. Archived from the original on 27 August 2017. Retrieved 12 September 2007.
29. "Developer ends Causeway challenge". BBC News. May 2009. Archived from the original on 14 March 2017. Retrieved 25 July 2009.
30. Maguire, Anna (5 July 2012). "Causeway visitors' centre: A giant leap forward?". Belfast Telegraph. Archived from the original on 8 July 2012. Retrieved 5 July 2012.
31. "Giants Causeway gets £9m tourist board grant". BBC. 22 March 2010. Archived from the original on 12 July 2017. Retrieved 5 July 2012.
32. "Giants Causeway Visitor Centre Reviews, Trip Advisor". Trip Advisor. 15 September 2012. Retrieved 15 September 2012.
33. "ALVA – Association of Leading Visitor Attractions". alva.org.uk. Archived from the original on 23 December 2017. Retrieved 27 July 2019.
34. "National Trust in Giant's Causeway creationism row". The Independent. 5 July 2012. Archived from the original on 27 May 2019. Retrieved 5 July 2012.
35. "Causeway centre gives creationist view". U TV. 4 July 2012. Archived from the original on 6 July 2012. Retrieved 5 July 2012.
36. "Online group calls for removal of creationist exhibit at Giant's Causeway". BBC Northern Ireland. 5 July 2012. Archived from the original on 19 April 2019. Retrieved 6 July 2012.
37. "Trust in Causeway creationism row". Irish Independent. 5 July 2012. Archived from the original on 7 July 2012. Retrieved 6 July 2012.
38. "Trust amends Causeway centre "Creationist" exhibit". BBC News. 3 October 2012. Archived from the original on 16 December 2012. Retrieved 30 November 2012.
39. "Giants Causeway, Northern Ireland". Retrieved 9 November 2023.
40. Stromatolite colony found in Giant's Causeway Archived 29 December 2011 at the Wayback Machine, BBC News. 14 October 2011.
41. Neukirchen, Florian (2022). The Formation of Mountains. Springer International. pp. 17, 18. ISBN 9783031113857. Basalt columns are formed when lava that has already solidified cools down The most famous location is certainly Giant's Causeway on the coast of Northern Ireland, but there are also occurrences

Further reading

• Deane, C. Douglas (1983). The Ulster Countryside. Belfast: Century Books. ISBN 0-903152-17-7. OCLC 1330868074.
• Jagla, E. A.; Rojo, A. G. (2002). "Sequential fragmentation: the origin of columnar quasihexagonal patterns". Physical Review E. 65 (2): 026203. arXiv:cond-mat/0003312. Bibcode:2002PhRvE..65b6203J. doi:10.1103/PhysRevE.65.026203. PMID 11863628. S2CID 33030461.
• Watson, Philip S. (2000). The Giant's Causeway and the North Antrim coast. Dublin: O'Brien Press. ISBN 0-86278-675-4. OCLC 45829602.

External links

• Giant's Causeway information at the National Trust
• Website and video of the Causeway Coast and Glens Heritage Trust
• Causeway Coast and Glens Tourism – Official Tourist Board visitor information for the Causeway and surrounding area
• Landscapes Unlocked – Aerial footage from the BBC series Sky High explaining the physical, social, and economic geography of Northern Ireland

v t e Geology of Northern Ireland
Volcanism	Antrim plateau Benevenagh Black Mountain Cavehill Divis Donald's Hill Giant's Causeway Murlough Bay Rathlin Island
Volcanic plugs	Carrick a Rede Scawt Hill Slemish Slieve Gallion Slieve Gullion Tievebulliagh
Dykes and sills	Fair Head Ring of Gullion The Maidens The Skerries
Metamorphic	Benbradagh Loughermore Mourne Mountains Mullaghcarn Mullaghmore Sawel Mountain Slieve Bearnagh Slieve Binnian Slieve Commedagh Slieve Croob Slieve Donard Slieve Gallion Slieve Muck Sperrins
Sedimentary	Belmore Mountain Benaughlin Mountain Cuilcagh Hibernian Greensands Group Islandmagee Leitrim Group Magheramorne Marble Arch Caves Slieve Rushen Tyrone Group Ulster White Limestone Group Waterloo Bay
Lists	Geological faults of Northern Ireland
Geology portal Northern Ireland portal

v t e Museums and galleries in Northern Ireland
National museums Armagh County Museum Ulster American Folk Park Ulster Folk and Transport Museums Ulster Museum W5
Northern Ireland Environment Agency Ballycopeland Windmill Bellaghy Bawn Carrickfergus Castle Castle Archdale Country Park Derry City Walls Devenish Monastic Site Dundrum Castle Dunluce Castle Greencastle Grey Abbey Harry Avery's and Newtownstewart Castle Hillsborough Courthouse Inch Abbey Jordan's Castle Monuments and Buildings Record Navan Fort Nendrum Monastic Site Tullaghoge Tully Castle
National Trust Ardress House The Argory Carrick-a-Rede Rope Bridge Castle Coole Castle Ward Crom Estate Crown Liquor Saloon Derrymore House Downhill Estate (Mussenden Temple) Florence Court Giant's Causeway Gray's Printing Press Hezlett House Mount Stewart Murlough Nature Reserve Patterson's Spade Mill Rowallane Garden Springhill House Wellbrook Beetling Mill
Other museums and galleries Belfast Exposed Down County Museum Irish Republican History Museum Northern Ireland War Memorial Ormeau Baths Gallery Saint Patrick Visitor Centre Somme Heritage Centre Ulster Aviation Society Whitehead Railway Museum
Northern Ireland portal

v t e World Heritage Sites in the United Kingdom
England	Bath as part of Great Spa Towns of Europe Blenheim Palace Canterbury Cathedral, St Augustine's Abbey and St Martin's Church Cornwall and West Devon Mining Landscape Derwent Valley Mills Durham Castle and Cathedral Frontiers of the Roman Empire Hadrian's Wall Ironbridge Gorge Jodrell Bank Observatory Jurassic Coast Kew Royal Botanic Gardens Lake District Maritime Greenwich Palace of Westminster and Westminster Abbey including St Margaret's Church Saltaire Stonehenge, Avebury and Associated Sites Studley Royal Park and Fountains Abbey Tower of London
Scotland	Edinburgh Old Town and New Town Forth Bridge Frontiers of the Roman Empire Antonine Wall Heart of Neolithic Orkney New Lanark St Kilda
Wales	Blaenavon Industrial Landscape Castles and Town Walls of King Edward I in Gwynedd Beaumaris Castle Caernarfon Castle and Town Walls Conwy Castle and Town Walls Harlech Castle Pontcysyllte Aqueduct and Canal The Slate Landscape of Northwest Wales
Northern Ireland	Giant's Causeway
British Overseas Territories	Gorham's Cave Complex Gough Island Inaccessible Island Henderson Island Town of St George and Related Fortifications
Former	Liverpool Maritime Mercantile City

v t e Places in County Antrim
List of places in County Antrim
Cities	Belfast (part) Lisburn (part)
Towns	Antrim Ballycastle Ballyclare Ballymena Ballymoney Carrickfergus Larne Newtownabbey Portrush Randalstown
Villages	Aghagallon Aghalee Ahoghill Aldergrove Armoy Aughafatten Ballinderry Upper Ballinderry Lower Ballintoy Ballybogy Ballycarry Ballyeaston Ballygally Ballylinny Ballynure Ballyrobert Ballystrudder Ballyvoy Balnamore Bendooragh Broughshane Buckna Bushmills Capecastle Cargan Carnalbanagh Carncastle Carnlough Clogh Cloghmills Cogry-Kilbride Craigarogan Crumlin Cullybackey Cushendall Cushendun Dervock Derrymore Doagh Donegore Drains Bay Dunadry Dundrod Dunloy Gawley's Gate Glenarm Glenavy Glenoe Glynn Gracehill Grange Corner Greenisland Groggan Kells and Connor Kellswater Keshbridge Killead Knocknacarry Longkesh Loughguile Lurganure Maghaberry Magheramorne Martinstown Mill Bay Millbank Milltown Moneyglass Monkstown Moss-side Mounthill Mullaghboy Newtown Crommelin Parkgate Portballintrae Portbraddon Portglenone Rasharkin Roughfort Stoneyford Straid Stranocum Templepatrick Toome Tullynacross Waterfoot Whitehead
Townlands	Artiforty Ballycraigy Barmeen Bonnybefore Broomhedge Broomhedge Lower Carnmoney Dunamuggy Dunmurry Dunseverick Galgorm Parks Glengormley Jordanstown Kilroot Lambeg Lisnagarvy Loughlynch Monkstown Rathcoole Solar Tobergill Whiteabbey
Landforms	Belfast Lough Benbane Head Black Mountain Cavehill Divis Fair Head Giant's Causeway Glens of Antrim Glenariff Forest Park Islandmagee Lagan Valley Larne Lough Lough Beg Portmore Lough Rathlin Island Scawt Hill Slemish Slieve True Slieveanorra Forest Tievebulliagh Waterloo Bay
Baronies	Antrim Lower Antrim Upper Belfast Lower Belfast Upper Carrickfergus Cary Dunluce Lower Dunluce Upper Glenarm Lower Glenarm Upper Kilconway Massereene Lower Massereene Upper Toome Lower Toome Upper
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• 1986 establishments in the United Kingdom
• Columnar basalts of the United Kingdom
• Extinct volcanism
• Fenian Cycle
• First 100 IUGS Geological Heritage Sites
• Geomyths
• Geology of Northern Ireland
• Geotourism in the United Kingdom
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• National Trust properties in Northern Ireland
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• Nature reserves in Northern Ireland
• Northern Ireland coast
• Paleogene Ireland
• Paleogene volcanism
• Patterned grounds
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• Protected areas of County Antrim
• Rock formations of Northern Ireland
• Tourist attractions in County Antrim
• Volcanism of Northern Ireland
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