Caving activities in County Clare
The Doolin area is popular with cavers. The Fisherstreet Potholes are nearby, and Poll na gColm, 5km northeast of Lisdoonvarna, is Ireland's longest cave, with more than 12km of mapped passageways; see www.cavingireland.org for more details. A little over 1km north of Roadford you'll find Doolin Cave, which boasts an enormous stalactite that looks like a giant squid. The main entrance is at the Fisherstreet Potholes; tour times vary by season.
The rocks to the north of Doolin Harbour are honeycombed with an unusual system of undersea caves called the Green Holes of Doolin. They're the longest known undersea caves in temperate waters. Nondivers can look (with care) into…