Best natural monuments around Coolarkan, located in County Fermanagh, Northern Ireland, offer diverse geological and historical features. The area is known for its impressive cave systems, dramatic waterfalls, and ancient megalithic sites. Visitors can explore a landscape shaped by water and time, providing insights into both natural processes and early human history. These natural landmarks provide opportunities for exploration within the Belmore Forest area.
Last updated: June 29, 2026
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Incredible Stone-Age park, with some technical trails. Massive mythological sacred stones worshipped over centuries, will follow you when adventuring into this unique geological and archaeological forest landscape.
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Stunning limestone caves which you can explore on a guided tour. Well worth a visit. There are 150 steps down to the caves so if you are wearing cleats please be aware, or change into a pair of trainers before you descend down into the natural wonder. There is also a cafe on site. For further details please see https://marblearchcaves.co.uk/
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Marble Arch caves are situated at the picturesque foothills of the Cuilcagh Mountain. They are the longest underground cave system in Northern Ireland (7.1 miles in total) and are said to be the most magnificent in Britain. The caves are regarded as a world-class natural attraction, they are situated in the Cuilcagh Lakelands which is the world's first UNESCO Global Geopark. The caves are only explorable by guided tours which run daily between 10am - 5pm. To secure a spot, visit https://marblearchcaves.co.uk/online-booking-guided-cave-tour/
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Clodagh Glen has a steep sided gorge that is lined by ancient ash trees that cling to the steep sides. The water sculpted river valley has a spectacular arch over the river which formed when the cave roof collapsed. The reserve is known for its limestone gorge, mystical caves and beautiful waterfalls. In the springtime the valley floor is carpeted by bluebells, wood anemones and wild garlic and in the summer silver-washed fritillaries are found besides the path. With a keen eye you may also spot an elusive pint martin and red squirrels!
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The Cuilcagh Mountain Park covers 6,000 acres on the north slopes of the Cuilcagh Mountain. The park was founded in 1998 and works to conserve the bogland and restore damaged peatland. At 665m the mountain is one of the highest points in Ireland. The Limestone rock was formed over 300 million years ago by ocean calcifying organisms when Ireland was covered by shallow tropical sea. With an interesting and varied flora and fauna alongside historic ancient ruins, there is plenty to explore in the park.
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Many of Ireland’s megalithic monuments—portal tombs, court cairns, or wedge tombs such as this one—are known locally as “the giant’s grave.” But this one, on a hilltop in Co. Cavan’s Burren Forest Park, has a giant story to go along with its name. According to Harold Johnson, from the nearby town of Blacklion, the giant, attempting to impress a lady, failed in his final attempt to jump the nearby chasm, which is, of course, called “The Giant’s Leap.” Harold Johnson relates this story in some detail, while seated on the Giant’s Grave, in the video, below right. Mr. Johnson also was our guide, and provided the narration, for our feature on the Killinagh Cursing Stones, located on the opposite side of the town of Blacklion. (https://voicesfromthedawn.com/burren-giants-grave/)
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Coolarkan, located in County Fermanagh, Northern Ireland, offers a variety of impressive natural features. You can discover dramatic geological formations like the Cladagh Glen Waterfall, known for its limestone gorge, mystical caves, and beautiful waterfalls. The area is also home to the significant Pollnagollum Coolarkan Cave, featuring a 12-meter waterfall cascading into its entrance, and the Pollnagollum Cave and Waterfall, part of a complex cave system.
Yes, Coolarkan is rich in historical and archaeological sites. You can visit Giant's Grave & Giant's Cave, a historical site featuring ancient megalithic tombs with local legends. Another must-see is Cavan Burren Park Megalithic Stones, where you can explore an ancient landscape with mythological sacred stones.
The area around Coolarkan's natural monuments is excellent for outdoor activities. You can enjoy hiking, cycling, and gravel biking. For hiking, consider routes like the 'Belmore Forest loop via Pollnagollum Cave' or 'Marble Arch Caves via Cladagh River'. Cyclists can explore routes such as the 'Kingfisher Cycle Trail - Northern Loop'. For more options, check out the easy hikes around Coolarkan, cycling around Coolarkan, and gravel biking around Coolarkan guides.
Many of Coolarkan's natural monuments offer family-friendly experiences. Exploring the ancient megalithic sites at Giant's Grave & Giant's Cave or Cavan Burren Park Megalithic Stones can be an engaging educational outing. The trails around Cladagh Glen Waterfall are also suitable for families, offering beautiful scenery and easy walks. While the Pollnagollum Cave area is accessible, caution is advised with very small children due to potentially unstable or slippery rocks.
Many outdoor areas around Coolarkan are dog-friendly, especially within Belmore Forest. However, it's always best to keep dogs on a lead, particularly near sensitive natural sites, livestock, or areas with wildlife. Specific rules may apply to certain reserves or indoor attractions, so always check local signage.
The natural monuments around Coolarkan can be enjoyed year-round, but each season offers a different experience. Spring brings vibrant wildflowers like bluebells and wild garlic to places like Cladagh Glen. Summer provides pleasant weather for exploring. Autumn showcases magical colors in the forests. After prolonged rainfall, the waterfalls, such as the one at Pollnagollum Coolarkan Cave, are particularly spectacular. Always check the weather forecast before your visit, especially for caving or mountain areas.
The natural monuments around Coolarkan are primarily accessible by car, with parking available at various trailheads and visitor points, such as those for Belmore Forest. Public transport options might be limited, so planning your journey in advance is recommended. For specific locations like Belmore Forest, look for local bus services or consider driving.
Coolarkan is renowned for its unique geological formations. The Pollnagollum Coolarkan Cave is a prime example, an impressive cave system formed by a collapsed cavern roof, featuring a dramatic 12-meter waterfall. The limestone rock in the region, including at the Cliff Edge of Cuilcagh Mountain and Coolarkan Quarry, formed over 300 million years ago from ancient tropical seas, offering insights into Ireland's deep geological past.
For rock climbing enthusiasts, Coolarkan Quarry, situated near the Pollnagollum Coolarkan Cave, offers excellent opportunities. This small climbing crag is composed of limestone and provides both bolted and traditional climbing routes suitable for various skill levels. It's a great spot to combine caving exploration (from observation platforms) with climbing activities.
The natural monuments around Coolarkan are home to diverse flora and fauna. In places like Cladagh Glen Waterfall, you might spot silver-washed fritillaries, elusive pine martens, and red squirrels. The bogland habitats of the Cuilcagh Mountain Park also support a variety of species. Keep an eye out for local birds and insects, especially during spring and summer.
Yes, there are several easy hiking trails suitable for most visitors. For example, the 'Belmore Forest loop via Pollnagollum Cave' is an easy 6 km route. Another accessible option is the 'Marble Arch Caves via Cladagh River' trail, which is about 3.5 km. These trails allow you to experience the natural beauty without strenuous effort. You can find more easy options in the easy hikes around Coolarkan guide.
Visitors frequently praise the unique blend of natural beauty and historical significance. The dramatic waterfalls and mystical caves, like those at Cladagh Glen Waterfall and Pollnagollum Cave and Waterfall, are highly appreciated. The ancient megalithic sites, such as Giant's Grave & Giant's Cave, offer a fascinating glimpse into the past, making the area a captivating destination for exploration and photography.
While Coolarkan itself is a specific locality, the broader County Fermanagh region offers various amenities. You can find cafes, pubs, and accommodation options in nearby towns such as Blacklion, Belcoo, and Enniskillen. It's advisable to check in advance for specific establishments and their opening hours, especially if visiting during off-peak seasons.


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