Crag Cave

A visit to Crag Cave will delight and enthral. The friendly tour guides will be pleased to explain the origins of the cave and introduce you to a world older than mankind. 

Open Year Round.

Castleisland, Co. Kerry (See Map Below)


At the bosom of the Glannaruddery mountains, nestling near Castleisland town in Co. Kerry, nature has fashioned a story - Crag Cave.

Crag Cave is the result of millions of years of nature’s stone masonry and wild dancing rivers pushing through caverns – all culminating in the magical caves you will experience on your visit. A visit to Crag Cave Kerry will delight and enthral.

The friendly tour guides will be pleased to explain the origins of the cave, describe its many beautiful formations and introduce you to a world older than mankind.

Discovered in 1983, and thought to be over one million years old, Crag Cave is an all-weather attraction - a magical wonderland of stalagmites and stalactites. The cave itself is 3.8km long and you will be guided through 400m of it. All the tours are guided and last approximately 30 minutes. The temperature in the cave is 10 degrees.

The Fun 'Crazy Cave'

Crag Cave is also home to the indoor and outdoor activity centre called 'The Crazy Cave', a haven for adults as well as children. It includes a three-tiered soft play system, mega astra slide, funball battle with cannon guns, soccer pitch, spiral slides, ballpools, baby area, under 5's and lots more!



The Visitor Centre 

The Visitor Centre includes the Garden Restaurant where you can enjoy delicious food. The centre also includes an excellent Gift Shop.



Kerry International Airport is 13kms from Crag Cave on the N23 roadway. 

By car from from Dublin/Limerick: follow the M7 motorway to Limerick and take the N21 to Castleisland.

By car from Cork: Take the N22 Road to Killarney and to Farranfore. Turn left on the N23 to Castleisland.

Crag Cave Location:

Discovering Crag Cave

The Geological Survey of 1859 acknowledged the existence of Castleisland caves, but it was only in 1981 that any proper exploration began.

During the course of an investigation into water pollution in the area, David Keane (waterworks supervisor) informed Professor John Gunn of U.C.C. that he had explored a cave near Crag House in his youth. John Gunn and Bridget Scanlon checked out the Crag area and discovered three entrances to what is now Crag Cave.

In 1983 a Welsh cave diver (Martyn Farr) explored the sump and eventually found what he later described as ‘caverns measureless to man’ - Crag Cave. He was soon followed by John Cooper, and both set about exploring the new discovery and making it accessible to a team. The team christened many of the newly-found passages and chambers with names from J.R.R. Tolkien’s ‘Lord of the Rings’.

Emerging through ‘Aerobes Ecstasy’ into ‘Divers Delight’, the team made its way to ‘Minas Tirith’ (the Big Chamber). Beyond this large passage were the ‘Cliffs of Emyn Muil’, a 6 metre slope leading into an even larger chamber 27 metres long, 15 metres wide and 9 metres high. They explored further into the ‘Forest of Fangorn’, an area of fine stalagmites, including the White Tower, a superb pillar. They then proceeded onto the ‘Hall of Gondor’ and into other complex and superb passages.

It was estimated that Crag was at least 3.5km long, but recent exploration has extended that to 3.82km and further exploration may push this towards the 4km mark or beyond it. 

Visitor Information

Crag Cave
Castleisland, Co. Kerry
T. +353 (0)66 714 1244

Open Year-Round




You can book online tickets to Crag Caves directly from their website at


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