Best natural monuments around Mullaghdun showcase striking geological formations, ancient history, and diverse ecosystems within County Fermanagh. The region features a landscape of green hills, meandering rivers, and limestone formations. Visitors can explore a variety of natural features, including caves, waterfalls, and ancient burial sites. These locations offer insights into the area's geological past and historical significance.
Last updated: June 29, 2026
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The Cuilcagh Boardwalk Trail, affectionately known as the "Stairway to Heaven," offers a challenging yet rewarding hike through one of Northern Ireland's most stunning landscapes. Spanning approximately 11 km round-trip, the trail meanders through expansive blanket bogs before culminating in a steep ascent of 450 wooden steps to a viewing platform atop Cuilcagh Mountain. Hikers are treated to breathtaking panoramic views of the surrounding lowlands, including glimpses of counties Cavan, Leitrim, and Donegal on clear days. While the boardwalk was constructed to protect the delicate bog ecosystem, it has also made the trail more accessible, attracting over 60,000 visitors annually.
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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 region around Mullaghdun is rich in natural monuments. Key attractions include the challenging but rewarding Cuilcagh Boardwalk Trail (Stairway to Heaven), the ancient Giant's Grave & Giant's Cave with its local folklore, and the unique Cavan Burren Park Megalithic Stones. Additionally, the Marble Arch Caves, a major river showcave, and the Killykeeghan National Nature Reserve are significant sites showcasing the area's geological and ecological diversity.
Yes, several natural monuments offer experiences suitable for families. The Cavan Burren Park Megalithic Stones features an interpretive center and looped walking trails, making it accessible and engaging for all ages. The Marble Arch Caves also offer guided tours that can be a fascinating experience for families, exploring underground formations.
Mullaghdun's natural monuments are known for striking geological formations. You can explore limestone landscapes, such as those found at the Marble Arch Caves with its subterranean rivers and sinkholes, and the Killykeeghan National Nature Reserve with its rare limestone pavement. The Cladagh Glen Waterfall features a steep-sided gorge and a spectacular arch formed by a collapsed cave roof, showcasing the power of water erosion.
Absolutely. The region is steeped in history. The Giant's Grave & Giant's Cave are megalithic tombs in the Burren Forest, associated with ancient folklore. The Cavan Burren Park Megalithic Stones also features ancient Stone-Age monuments and massive mythological sacred stones, offering a blend of natural and archaeological interest.
The area around Mullaghdun offers a variety of outdoor activities. You can find numerous routes for gravel biking, mountain biking, and cycling. For example, explore routes like the 'Kingfisher Trail - Northern Loop' for cycling, or 'Lower Lough Mcnean, Florence Court House and Cuilcagh Mountain Park loop' for mountain biking. You can find more details on these and other routes in the Gravel biking around Mullaghdun, MTB Trails around Mullaghdun, and Cycling around Mullaghdun guides.
Yes, hiking is a popular activity. The Cuilcagh Boardwalk Trail (Stairway to Heaven) is a prominent 7.5-kilometer trail leading to a Bronze Age burial mound with panoramic views. The Killykeeghan National Nature Reserve also offers a looped walking trail with interpretive information, showcasing its unique landscape and biodiversity.
The natural monuments can be enjoyed throughout the year, but spring and summer offer the most pleasant weather for outdoor activities like hiking and exploring. In spring, areas like the Cladagh Glen Waterfall are carpeted with bluebells and wild garlic. Autumn brings magical colors to the forests. Always check local weather conditions before your visit, especially for trails like the Cuilcagh Boardwalk.
Many natural monuments offer breathtaking views. The Cuilcagh Boardwalk Trail leads to 665 meters above sea level, providing panoramic views of secluded moorland and a barren rocky landscape. The Cliff Edge of Cuilcagh Mountain also offers far-reaching views across the surrounding area.
Yes, the Cladagh Glen Waterfall is a notable natural monument featuring a steep-sided gorge lined by ancient ash trees, mystical caves, and beautiful waterfalls. It's a fantastic spot to experience the region's water-sculpted river valleys.
Visitors frequently praise the stunning natural beauty and the unique blend of geology and history. The Cuilcagh Boardwalk Trail is often highlighted for its rewarding path and wonderful moor landscape. The ancient sites like Giant's Grave & Giant's Cave are appreciated for their captivating folklore and historical significance. The overall experience of exploring diverse ecosystems, from moorland to underground caves, is highly valued.
While many outdoor natural monuments like the Cuilcagh Boardwalk Trail and Killykeeghan National Nature Reserve are free to access, some attractions like the Marble Arch Caves typically require an entrance fee for guided tours. It's advisable to check the specific monument's official website for current pricing and booking information.
Yes, several sites offer insights into the local biodiversity. The Killykeeghan National Nature Reserve is known for its wide array of plant and animal species, set within a unique limestone landscape. At Cladagh Glen Waterfall, you can spot bluebells, wood anemones, wild garlic, and potentially elusive pine martens and red squirrels, especially in spring and summer.


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