Best caves in Connacht are found across its diverse landscape, a province on Ireland's west coast. The region features a variety of intriguing caves, each offering unique geological formations and historical significance. Connacht's terrain includes limestone areas, providing ideal conditions for cave development. These natural features contribute to the province's rich mythological associations and archaeological discoveries.
Last updated: April 29, 2026
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Popular around Connacht
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The Pigeon Hole is a limestone cave located between Lough Corrib and Lough Mask just outside of the village of Cong. A steep descent of steps with a welcome handrail will bring you down to the main cavern, a fairly substantial space over 12-feet wide with a subterranean stream running through it. The cave gets its name from the fact that it’s a common place for pigeons to nest.
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Glengowla mine opened in 1851 and was active until 1865 for the excavation of mostly silver and lead. It is now open to visitors and provides an interesting insight into the hardships miners faced in the 19th century. It is well worth a visit on your tour, but do take an extra layer to the mine as it can get chilly down there. There are sheepdog demonstrations on site too. For more information see the websitehttps://www.glengowlamines.ie/
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Kelly's Cave lies in woodland 500 m (1,600 ft) northeast of Cong. The cave is about 16 m long and consists of two rectangular chambers and a hole in the roof which acts as a skylight. Four steps lead down to an underground stream, and benches have been carved into the walls. The entrance is blocked with an iron gate. The path to the grave (about 160 meters) is very impressive too - large stones (coverd with moss) stand and lie along the path. https://en.wikipedia.org/wiki/Kelly%27s_Cave
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In this rock face, 17 caves open into the interior of the mountain. Many legends are told about this place, among other things a king is said to have been born here and raised by a she-wolf. The bones of all kinds of animals have been found under the cover of the mountain, including cave bears, lemmings and reindeer. Prehistoric people also sought protection here.
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Beautiful long sandy beaches that invite you to take long walks. From the beach you have great views of the cliffs that surround the beach on both sides. In addition to the fantastically beautiful sand dunes, you will also find a small cave under the cliffs that you can explore. The sheltered bay of Carrowteige is great for swimming.
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The cave is in the forest on a small hill. There are stairs down that we couldn't climb as a rappelling course was going on. It's definitely worth looking down.
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Connacht's caves offer diverse natural features. For instance, Pigeon Hole Cave features a subterranean stream flowing through its main cavern. Aillwee Cave, though not in the provided highlights, is known for its underground river, a waterfall, and impressive stalactites and stalagmites. The Caves of Kesh contain quartz crystals and glacial boulder-beds.
Several caves in Connacht are rich in history and mythology. The Caves of Keash are steeped in Irish folklore, associated with Finn MacCumhaill and the Otherworld, with archaeological evidence of use from the Mesolithic to the Iron Age. Oweynagat (Cave of the Cats) is renowned as a portal to the Otherworld and the birthplace of the Samhain festival, deeply connected with figures like the Morrigan.
Yes, some caves offer experiences suitable for families. While not a cave itself, Carrowteige Beach has a small cave under the cliffs that families can explore, alongside long sandy beaches. Glengowla Mines, a historical site, also offers an interesting family-friendly visit to an old lead and silver mine, providing insight into 19th-century mining life.
Near Connacht's caves, you can find various outdoor activities. For hiking, consider routes like the Diamond Hill Loop or the Cong Abbey, Pigeon Hole and Ashford Castle loop. If you enjoy running, the Sligo parks and river blast or the Benbulben Forest loop are good options. Road cyclists can explore routes such as the Roundstone, Clifden, Kylemore and Inagh Valley loop. You can find more details on these activities in the Hiking in Connacht, Running Trails in Connacht, and Road Cycling Routes in Connacht guides.
The Caves of Keash are popular due to their dramatic setting on Keshcorran Hill, offering panoramic views. They are significant for their rich mythology and archaeological finds, including bones of various animals like cave bears and lemmings, indicating prehistoric use. The hike to the caves, though steep, is considered very rewarding.
Yes, for experienced cavers seeking a challenge, Polticoghlan (Pulthy Clogher) in County Leitrim offers a dramatic experience. It features a massive main chamber reached after a spectacular descent, including a 10-meter drop and an inlet waterfall. Pol na Leprechauns, also in North Leitrim, is an impressive 85-meter-deep pothole cave with multiple pitches, providing a demanding caving experience.
Oweynagat is a site of immense mythological importance, known as a portal to the Otherworld and associated with Samhain. The entrance is a stone-lined souterrain leading to a natural limestone fissure. Due to its location on private land and potential dangers, it's recommended to visit through guided tours from the Rathcroghan Visitor Centre.
Aillwee Cave, located near the Burren, offers guided tours through its extensive passages, showcasing ancient rock formations and an underground river. While the Marble Arch Caves are sometimes associated with the region, they are primarily in County Fermanagh, Northern Ireland, and also offer guided tours.
The Caves of Keash have yielded bones of various animals, including Arctic lemmings, reindeer, and cave bears, along with human teeth and Early Iron Age artifacts. Aillwee Cave has revealed remains of brown bears and indentations of bear pits, suggesting it was once a bear den.
Visitors to Connacht's caves often appreciate the blend of natural beauty, historical depth, and mythological intrigue. The dramatic landscapes, unique geological formations, and the sense of stepping into ancient stories are frequently highlighted. The komoot community has shown its appreciation with over 60 upvotes and more than 40 photos shared, reflecting the captivating nature of these sites.
Polticoghlan (Pulthy Clogher) and Pol na Leprechauns in County Leitrim are examples of less-frequented caves. Polticoghlan, despite its dramatic proportions, is relatively isolated. Pol na Leprechauns offers an impressive caving experience for those interested in exploring less-visited underground systems, providing a sense of solitude and adventure.


Extend your search for the best caves by checking out these guides of the top ones in Connacht: