Discover Ireland’s world of hidden sea caves by getting into a kayak and onto the water.
Ireland’s rugged coastline is over 4,600 miles (7,500 km) long, and so, particularly on the west coast, it has been shaped by the wild Atlantic Ocean over thousands of years.
It contains plentiful hidden sea caves. Many of these are hidden from the masses and are only accessible from the water, making a kayak an ideal way to discover them.
We’ve picked out five incredible, hidden caves that will make for extraordinary, sea-based explorations. Read on to start planning your next kayaking adventure.
Always check tides, swell forecasts, local conditions and relevant guides before attempting any sea cave exploration.
5. The Sea Caves of Ballybunion, Co. Kerry – sea arches, caves, and Atlantic scenery
Gliding beneath towering cliffs, kayakers can enter secluded caverns and discover hidden corners that are inaccessible from land. The constantly changing light inside the caves highlights the textures and colours of the sandstone rock geology.
A notable feature of the Sea Caves of Ballybunion is the “Nine Daughters’ Hole”, a dramatic blowhole formed when a sea cave beneath the cliffs eroded upward and broke through the surface.
The blowhole, which connects to the deeper cave network, can send seaspray high into the air during rough seas.
Address: Castleview, Doon Bay Rd, Doon West, Ballybunion, Co. Kerry, Ireland
4. Dunmore East Caves, Co. Waterford – lesser-known caves on the southeast coast
The Dunmore East Sea Caves are a hidden gem along Ireland’s southeastern coastline. Unlike many of Ireland’s exposed Atlantic caves, the sea caves at Dunmore often benefit from more sheltered conditions, making exploration possible on a wider range of days.
The sea caves here are tucked beneath dramatic cliffs and rocky headlands, offering an exciting destination for sea kayakers. They are certainly some of the best caves in Ireland.
One of the most prominent features is the Dunmore East Cliffs, which rise above the water, dwarfing paddlers.
From the water, kayakers can explore narrow passages and small caverns while admiring the rugged rock formations. The combination of coastal scenery, wildlife, and accessible adventure makes this a must-do for sea cave explorers seeking a change from the Atlantic coast.
Address: Dunmore East, County Waterford, Ireland
3. Blasket Islands, Co. Kerry – a wild, Atlantic cave off the tip of Ireland’s southwest
The now-abandoned Great Blasket Island offers sea kayakers a truly wild adventure with towering cliffs, sea caves, crystal-clear water on calm days, and the frequent presence of seabirds, seals and occasionally sharks and whales.
The most famous feature in the area is a rock formation that you can paddle through, called Cathedral Rock, due to its resemblance to a pair of Gothic steeples.
It being around one mile to paddle from the mainland to Great Blasket Island, getting there is an adventure in itself, making the whole trip a truly memorable experience.
2. Sea Caves of Inishmore, Co. Galway – a hidden gem on the Aran Islands
Thanks to their unique limestone geology, the Sea Caves of Inishmore are among the most fascinating natural attractions on Ireland’s west coast and one of the stops you can’t miss along the Wild Atlantic Way.
The most well-known feature in this area is Poll na bPéist, or the Serpent’s Lair. A naturally formed rectangular pool that has several underground channels and caves that connect it to the sea. While it is a truly fascinating feature, it can also be very dangerous due to underwater currents.
By using a kayak, you can escape the crowds drawn to Poll na bPéist and explore the sea caves themselves, which offer an impressive array of features to delight paddlers, with numerous narrow cave entrances opening into larger chambers, jaw-dropping cliffs, sea stacks, and natural arches hewed out by the ocean.
Address: Kilmurvy, Inishmore, Co. Galway, Ireland
1. Sea Caves of Malin Head, Co. Donegal – Ireland’s northernmost coastal caves
Hidden beneath rugged cliffs, the Sea Caves of Malin Head are among Ireland’s most spectacular coastal features.
Carved out by the powerful North Atlantic swell over thousands of years, kayakers can explore “Hell’s Hole”, a spectacular sea cave and blowhole carved into the rock, as well as a network of narrow passages, sea arches, and cavernous chambers where sunlight bounces off the water and illuminates the rock walls.
There’s a true sense of wilderness here due to the caves’ remote setting and dramatic scenery. The coastline at Malin Head is also rich in wildlife, with seals, seabirds, dolphins, and occasionally basking sharks spotted nearby.
Address: Ardmalin, Co. Donegal, Ireland
Being an island, there is virtually no limit to the adventures you can have while sea kayaking in Ireland. Armed with our five suggestions above, the only question remaining is which one will you start with?
