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Heritage Ireland

Dunmore Cave

A unique attraction where history and geology merge

See all opening times

Dunmore Cave

A unique attraction where history and geology merge

See all opening times


Adult: €5.00
Group/Senior: €4.00
Child/Student: €3.00
Family: €13.00


Getting here

Castlecomer Road
R95 A972

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Dunmore Cave

Dunmore Cave, not far from Kilkenny town, is a series of limestone chambers formed over millions of years. It contains some of the most impressive calcite formations found in any Irish underground structure.

The cave has been known for many centuries and is first mentioned in the ninth-century Triads of Ireland, where it is referred to as one of the ‘darkest places in Ireland’. The most gruesome reference, however, comes from the Annals of the Four Masters, which tells how the Viking leader Guthfrith of Ivar massacred a thousand people there in AD 928. Archaeological investigation has not reliably confirmed that such a massacre took place, but finds within the cave – including human remains – do indicate Viking activity.

Dunmore is now a show cave, with guided tours that will take you deep into the earth – and even deeper into the past.

Opening Times

Wednesday – Sundays 9.30 – 17.00

Last admission 16.00

Closed Monday and Tuesday

Open Bank Holidays. (When the site is open on Bank Holidays we are closed Tuesday and Wednesday, with the exception of  Wednesday 3 June 2024)



The caves are not accessible to wheelchair users.

This site may not be suitable for very young children. Children must be strictly supervised at all times. Max 3 Children to every 1 Adult for health and safety reasons.

Please note the interior of the Cave is cold and wet. Please dress appropriately. Visitors are advised to wear suitable footwear due to uneven terrain.

A visit to the Cave will entail 700 steps. Any person with health issues should consider carefully their own physical limitations in this regard.

All visitors to leave the cave before darkness falls.


Castlecomer Road
R95 A972

056 776 7726

Getting Here

10km from Kilkenny, 1km off N78 Castlecomer (road is well signposted).

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  • Bicycle Parking
  • Café
  • Car park
  • Card Accepted
  • Exhibition
  • Guided tours
  • Toilets


  • Access by Guided Tour Only
  • Hold hand rail

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