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Lough Derg

Integral and holy lake, of monasteries and high kings

Explore the mighty 32,000 acres of Ireland’s third-largest lake, Lough Derg, with its beautiful nature and plentiful activities.



Discover Lough Derg

Spanning an enormous 179 kilometers of shoreline and reaching 12 kilometers wide, Lough Derg is a vast area filled with opportunities to appreciate nature and heritage.

Lough Derg meets at the intersection of three counties, allowing proximity to a wide range of pretty towns nearby. The water is crystal clear and filled with fish from trout, salmon, pike, perch, and bream, making it the perfect place to go fishing. Take a boat ride out to enjoy the tranquil waters, or embrace adventure with a kayak, paddleboard, or canoe.

On land, the rich landscapes surrounding Lough Derg make for the perfect hikes, and plentiful trail options mean there is an activity option for everyone. In the areas surrounding the lake, over 90 heritage sites have been inhabited since prehistoric times and the lake itself has been an integral part of the water highway from the Atlantic Ocean to the Irish midlands since early medieval times. Inis Cealtra, or Holy Island, is one of the most famous monastic sites in Ireland.

Other sites on the lake are associated with Brian Ború, High King of Ireland, who ruled from Killaloe between 1002 and 1014. Discover more at the Brian Boru Heritage Centre, East Clare Heritage Centre, Holy Island, Portumna Castle, and Nenagh Castle.

Beautiful surrounding towns and villages offer a wealth of lively pubs, bistros, traditional Irish music, local art, craft pieces, and great shopping. 


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