Explore
Descend 70 feet below the Burren landscape to view millions of years of geological history. The guided cave tour reveals Europe's longest free-hanging stalactite.
Discovered in 1952 by two English cavers, the subterranean system remains exactly 11°C (52°F) year-round. Group sizes are capped at 20 people to protect the fragile environment.
You must wear a provided hard hat during the 50-minute tour. Animals, food, and open-toed shoes are strictly prohibited underground.
20 minutesFlash permitted
This is the primary destination of the guided tour. You will view the massive 7.3-meter (23-foot) Great Stalactite hanging from the limestone ceiling. This single formation weighs an estimated 10 tonnes. Have your camera ready for the dramatic moment the guide turns on the lights to reveal it.
10 minutesGeological history
This secondary area features a dense concentration of smaller cave formations. You will see straw stalactites, helictites, and bell jar shapes. Listen closely as the guide explains how these delicate structures were shaped by water over millennia. Visitors must not touch any of the rock surfaces.
10 minutesNot wheelchair accessible
Access to the main cavern requires descending a deep, narrow shaft. You will travel 70 feet (20 meters) below the surface. Visitors must navigate exactly 125 steps down and back up again. Take your time and use the handrails; there is a landing every ten steps to catch your breath.
