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Giant's Causeway
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How it came to be
Some 50 to 60 million years ago, intense volcanic activity in County Antrim spread fluid basalt lava across the region. As the lava cooled and contracted it cracked into about 40,000 columns, most of them hexagonal, the tallest about 12 m high.
Local legend says the Irish giant Fionn mac Cumhaill built the causeway to fight the Scottish giant Benandonner. William King, Bishop of Derry, visited in 1692, and the next year Sir Richard Bulkeley of Trinity College Dublin announced the site to the wider world in a paper to the Royal Society. Dublin artist Susanna Drury painted it in watercolour in 1739 and won a Dublin Society award in 1740.
Tourism grew in the 19th century, especially after the Giant's Causeway Tramway opened. The National Trust took over its care in the 1960s and owns most of the 70 ha site. UNESCO listed it in 1986.
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