Doolin Cave is home to a wondrous geological phenomenon - The Great Stalactite. Measuring almost 7 metres in length, it is one of the largest free hanging stalactites in the world. This is a truly wondrous sight. In order to preserve the delicate ecosystem of the cave numbers are limited per tour and per year. The cave tour takes approximately one hour. Access to the cave is via a courtesy coach from Bruach na hAille Restaurant in the village of Doolin just 3 miles from the cliffs.
Aillwee Cave is a 2 million year old cave system that goes deep into the Burren's underworld. Once the home of prehistoric bears, it is now a show cave which is spectacularly illuminated and offers guided tours to the public all year round.
Close to the ritual standing stone of Knockastoolery in the centre of Doolin village, is Fisherstreet pothole. This pothole is the entrance to the extensive Doolin cave system, incorporating many active underground rivers flowing through the limestone.