‘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 that this massive system of limestone springs and caves is the engine that drives this landscape, in the same way as an underground train network powers a city. It’s a place where rivers disappear into limestone fissures and subterranean lakes, and where roads twist through drowned valleys beneath mountains shaped by fire and ice.
It’s also the dreamy, lush landscape of western Ireland that famously drew Hollywood to the village of Cong for The Quiet Man in 1952. Travelling through the geopark from the heart of County Galway into southern County Mayo, I based myself in Cong, which is effectively an inland island between Lough Mask and Lough Corrib. The village takes its name from the Irish for “narrows”, a reference to its tight, water-bound geography and the concentration of springs that rise and fall invisibly beneath the surface.
Water is everywhere and rarely still. It drains from Lough Mask through swallow holes before travelling unseen for miles through limestone fissures beneath Cong, eventually forcing its way back to the surface as cold springs around the village.
“If you look in the centre, you can see the current flowing in opposite directions,” Benjamin says, pointing beyond the interpretive boards towards the channels where he first noticed the phenomenon. “We call it the Hatchery because of its connection to wild fish, and the springs bubble up there, right in the middle.”
Yet I quickly realised that it is not only the geopark’s karst terrain and glacial valleys that give it such distinct character. At its core sits a living Gaeltacht where Irish is still spoken in daily life, embedded in place names, local conversation and nightly sessions at the third-generation Burke’s Bar (Tí Bhúrca) in nearby Clonbur. The language runs through the landscape as another ingrained system alongside rock, water and soil.
The Augustinian abbey at Cong was founded under Gaelic royal patronage, yet its surviving stone arches reflect the deep architectural imprint left by later Norman reconstruction. In the 12th century, Ruaidrí Ua Conchobair (anglicised to Rory O’Connor), the last high king of Ireland, spent his final 15 years within these walls following political collapse in Connacht, seeking a quiet sanctuary where the river meets the woods. Centuries later, the tides of power shifted brutally under Tudor administration. The abbey was suppressed, and Sir Richard Bingham, the notorious lord president of Connacht, turned Ashford Castle into a menacing administrative hub, temporarily pulling the region’s political gravity to Cong before authority drifted westward once more. The castle was bought in 1852 by the Guinness family with proceeds from the global flow of the black stuff. They transformed the medieval ruins into a grand Victorian hunting lodge, the luxury retreat we see today.
Like the landscape of the geopark itself, these stone landmarks remain, but they constantly change their form, mirroring the fluid cultural afterlife of Cong village. At The Quiet Man Museum, curator Lisa Collins spoke of the enduring pull of John Ford’s film. Honeymooning visitors still arrive dressed as Sean Thornton (played by John Wayne) and Mary Kate Danaher (Maureen O’Hara), she said, stepping into a version of Ireland that has long outlived the production and indeed the country itself. The museum has been designated a Treasure of European Film Culture by the European Film Academy, with plans to mark the 75th anniversary of the film in Cong next year.
Among the exhibits is the fishing rod used by the village priest during filming on the River Cong. Held for decades by the family of sound man Thomas A Carman before its donation to the museum, the prop brings one of the movie’s most famous comedic exchanges into the room. In that celebrated scene, Mary Kate speaks in the Irish language to Father Peter Lonergan as he casts for a legendary, elusive salmon. Standing by the water, she desperately explains that she has refused to consummate the marriage while her husband sleeps in a “mála codlata”, which translates as sleeping bag.
The language allows the exchange to move into a different register, beneath the radar of 1952 censorship, yet fully understood within the Gaeltacht where the film was shot. It functions as a form of cover, allowing meaning to sit just beneath the surface.
That subterranean world becomes tangible at the Pigeon Hole cave system just outside the village. The entrance drops steeply into the limestone through shiny, time-worn steps, leading into a narrow chasm. Below, a shallow underground river moves through darkness, untouched by sunlight.
It is here that the legend of the White Trout of Cong gathers around the water. The story tells of a young woman who vanished following the murder of her lover, only for a pure white trout to appear in the cave soon afterwards. It’s reminiscent of Father Lonergan’s mythical fish in The Quiet Man, and like everything here in Joyce Country and the Western Lakes, it’s part myth and part truth.
Benjamin notes that elements of the legend may not be entirely detached from observation. Fish living for generations in complete darkness can lose pigmentation over time, becoming pale or entirely white as a result of their environment. In that sense, the story does not sit apart from geology. Another truth is that fishing remains central here, both as practice and inheritance.
Near Ashford Castle, a salmon hatchery attempts to support declining wild populations. The cold water that springs from the lakes should sustain fish stocks, but there are increasing environmental pressures.
“Maybe we are fighting a losing battle,” Benjamin said.
Climate change, warming seas and mounting pressure on river systems are all affecting wild Atlantic salmon. Trout remain more resilient, spending their lives within local waters such as Loughs Mask and Corrib rather than migrating out to sea.
Yet as the modern environment shifts, the landscape continues to hold older histories at different depths. Further inland at Carnacon, the ruins of the grand Moore Hall estate rise above Lough Carra from within encroaching woodland. One of the few Catholic-owned landed estates of its period, the house became associated with the great famine-era MP George Henry Moore and his colourful descendants, including the writer George Augustus Moore. Today, it sits partially collapsed since its destruction during the civil war, though the surrounding woods have absorbed rather than erased it. Paths thread through what was once a carefully controlled demesne, slipping into places where the estate’s geometry still survives beneath moss and root.
Not far away in Ballinrobe, another form of historical memory settles into language itself. It was here that Captain Charles Boycott, land agent for Lord Erne, became the focus of organised worker resistance during the land war in 1879. His name entered the global vocabulary as a verb, detached from its local origins yet still rooted in this terrain of contested land and memory. Moore Hall and Ballinrobe sit only a short distance apart, but together they reveal different expressions of the same pressures: ownership, resistance, inheritance, and the slow reshaping of meaning through time.
Further west, in Connemara, the landscape shifts dramatically once more as it reaches towards the Atlantic. At Killary Fjord, the land suddenly opens into deep water, a glacial incision dividing Connemara from Mayo. Here, the landscape’s buried secrets become visible. The fjord exposes geology directly, revealing the force with which ice once carved through the earth.
To the south, Kylemore Abbey appears against the hillside above Pollacappul Lough. Built first as a private residence before later becoming a Benedictine monastery, it carries another layered story of adaptation and loss. Like Moore Hall, it reflects changing ownership and identity, though here the landscape mirrors it back perfectly in the still water.
Across these places, from Cong to Moore Hall, from Ballinrobe to Killary, patterns continue to repeat in altered forms. Water disappears underground before resurfacing elsewhere. Estates become ruins. Ruins become woodland. Language carries meanings beneath meanings. Stories survive by changing shape.
Returning again to Cong, I have a better understanding of how it forms part of a much larger system of geological flow, historical pressure and cultural inheritance. What holds this region together is not stillness, but movement beneath the surface.
And above Lough Nafooey (also called Lough Finny), not far from the hairpin bends etched into the volcanic ash surface of Aill Dubh (Black Cliff), long after the road narrows into silence once again, a cuckoo’s call crosses the hills, marking time in a landscape that never quite repeats itself in the same way twice.
Accommodation was provided by Michaeleen’s Manor B&B in Cong, County Mayo (twins and doubles €115 B&B, singles €70), and the Leenane Hotel in County Galway (doubles from €120 B&B)