West Ireland's limestone springs, myth and Hollywood legend

“If you take all these springs together in terms of flow, it’s by far the largest in Ireland, and one of the biggest systems in the world,” said Dr Benjamin Thébaudeau, geologist for the newly designated Unesco Joyce Country and Western Lakes Geopark in western Ireland.

Over a few days I discovered this massive system of limestone springs and caves is the engine that drives the landscape, like an underground train network powering a city. Rivers disappear into limestone fissures and subterranean lakes, while roads twist through drowned valleys beneath mountains shaped by fire and ice.

Cong sits as an inland island between Lough Mask and Lough Corrib, its name from the Irish for “narrows” reflecting a tight, water-bound geography and a concentration of springs that rise and fall invisibly beneath the surface. The village is part of a living Gaeltacht where Irish is still spoken, woven into place names, local conversation and nightly sessions at the third-generation Burke’s Bar in nearby Clonbur.

Ireland, Western Ireland

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