What is recorded here
Mermaid's Hole is the longest of the known Green Holes, a submerged passage beneath Doolin Harbour in County Clare. It belongs to a restless cluster of caves where water, rock and memory collide, inviting cavers to test their limits in darkness. The name suggests a creature watching from below, yet the hole itself remains a measured fact: distance, depth and the risk of drowning.
The Irish Caves Database records Mermaid's Hole at Ballaghaline in County Clare. This point comes from its public cave register. A cave map point does not by itself grant access: check local conditions and ask the landowner where needed.
The cave register does not grant public access. Check conditions and ask the landowner before entering private land.
Places near here
Doolin PointHeadland · 185 yd
Enclosure in BallaghalineEnclosure · 297 yd
Church in BallaghalineChurch · 434 yd
Wild Atlantic Way: Doolin PierVisitor information · 577 yd
Doolin FerriesHeritage attraction · 587 yd
Crab IslandIslet · 619 yd
Ballaghaline PointHeadland · 670 yd
CaheradoonFairy fort / stone ringfort · 739 yd
Doonmacfelim Castle (in Ruins)Castle, tower house · 1732 yd
bridgebridge · 1.0 mi
Fisherstreet PotCave · 1.2 mi