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Category 7: Coastal

The UK and Ireland have stunning coastlines, featuring a wide variety of coastal geosites, including beaches, cliffs, coves and arches – perfect for a geological day out!

Click on the links below to find out about each Geosite:

Giant's Causeway

Giant’s Causeway

County Antrim, Northern Ireland

This famous site features thousands of distinctive hexagonal shaped basalt columns, formed about 60 million years ago during the formation of the North Atlantic Ocean

""Spectacular Scenery

Cliffs of Moher

Cliffs of Moher

County Clare, Ireland

Standing at 214m, these magnificent cliffs stretch for 5 miles along the Atlantic Coast and are Ireland’s most visited natural attraction.

""Spectacular Scenery


Hunstanton Cliffs

Norfolk, England

These colourful, stripy cliffs are noted for their fossils, and the contrast between the red limestone, known as ‘red chalk’, topped by a white chalk layer.

""The People’s Choice

Seven Sisters

Seven Sisters & Beachy Head

East Sussex, England

These iconic cliffs are part of the South Downs and are formed from Chalk. At their base, there are several chalk reefs, some of the best in the UK and Europe.

""Spectacular Scenery

Smoo Cave

Sango Bay & Smoo Cave

Durness, Highlands, Scotland

Sango Bay isn’t just a beautiful beach, it is also home to one of the finest fault planes in the British Isles. The nearby Smoo Cave is an interesting geological formation and an important archaeological site.

Mizen Head

Mizen Head

County Cork, Ireland

Mizen Head is located at the extremity of a peninsula in County Cork and is a popular tourist attraction, noted for its dramatic cliff scenery.

""Spectacular Scenery ""Unsung Heroes



Sutherland, Scotland

The rocks found here form part of the stunning scenery along the northwest coast and exhibit fascinating deformation.

""Unsung Heroes

Slieve League Cliffs

Cliffs of Slieve League

County Donegal, Ireland

The cliffs at Slieve League are the highest sea cliffs in Ireland at 601m. They form part of the International Appalachian Trail, as they can be directly correlated with rocks found in Newfoundland, Canada.

Barafundle Bay

Barafundle Bay & Stackpole Quay

Pembrokeshire, Wales

Barafundle bay is a small gem of a beach and nearby Stackpole Quay provides an opportunity to study folding and faulting at this spectacular outcrop.

""Unsung Heroes ""Geotourism

Durdle Door


Dorset, England

The Lulwoth site features both the popular rocks of Lulworth Cove and the Durdle Door formation, a must-visit site for any budding geologist!

100 Great Geosites


"" The People’s Choice
Winners of the Public Vote

""     Unsung Heroes    
Exceptional Local Geology

"" Spectacular Scenery
Stunning photo stops!

""         Geotourism        
Great for Visitors