Natural monuments around Tullybrack Or Ora More are primarily located within the Cuilcagh Lakelands UNESCO Global Geopark, a region known for its diverse landscape shaped over millions of years. This area, straddling the border between Northern Ireland and the Republic of Ireland, offers a variety of geological formations, ancient woodlands, and significant historical sites. Visitors can explore a range of natural attractions, from megalithic tombs to dramatic mountain scenery and tranquil glens with waterfalls. The region provides opportunities to experience…
Last updated: May 18, 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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The region, largely within the Cuilcagh Lakelands UNESCO Global Geopark, offers diverse natural monuments. Key sites include the ancient megalithic tombs at Giant's Grave & Giant's Cave, the unique geological and archaeological landscape of Cavan Burren Park Megalithic Stones, and the tranquil Cladagh Glen Waterfall with its ancient woodlands and limestone gorge.
You can expect a rich variety of landscapes, from vast blanket bogs and limestone grasslands on Cuilcagh Mountain to ancient ash woodlands, steep-sided gorges, and cascading waterfalls in places like Cladagh Glen. The area is also known for significant geological formations, including gritstone cliffs, limestone sinkholes, and cave systems, such as those near Pollnagollum Cave and Waterfall.
Yes, for a challenging and rewarding experience, the Cuilcagh Boardwalk Trail, often called the 'Stairway to Heaven,' offers an 11 km route through blanket bog, culminating in a steep ascent to a viewing platform with panoramic views. The Cliff Edge of Cuilcagh Mountain itself provides dramatic scenery and various walking routes.
At Cavan Burren Park, you can explore an incredible Stone-Age park featuring massive sacred stones and megalithic tombs like Cavan Burren Park Megalithic Stones. It offers a unique geological and archaeological forest landscape with technical trails and a county viewing point, providing insights into Neolithic history and diverse natural habitats.
The spring and summer months (April to September) are generally ideal for visiting, offering milder weather and longer daylight hours, which are perfect for hiking and exploring. In springtime, areas like Cladagh Glen are particularly beautiful with wildflowers such as bluebells and wild garlic. However, the dramatic scenery can be appreciated year-round, with autumn bringing magical colors to the woodlands.
Many natural monuments offer accessible options for families. Cladagh Glen Nature Reserve, for instance, has easy-to-follow paths alongside the river and waterfalls, making it suitable for various visitors. While some trails can be challenging, many sites within the Cuilcagh Lakelands Geopark have shorter, less strenuous routes or visitor centers that cater to families.
Beyond hiking, the area offers various outdoor activities. You can find numerous road cycling routes, including the 'Bundoran to Lower Lough Erne loop' or the 'Lower Lough MacNean loop'. For mountain biking, options like the 'Lower Lough Mcnean, Florence Court House and Cuilcagh Mountain Park loop' are available. Running trails, such as the 'Belmore Forest loop', also provide opportunities to explore the natural beauty. You can find more details on these activities in the Road Cycling Routes, Running Trails, and MTB Trails guides for the region.
The region is rich in history, with human influence dating back to Neolithic farmers (4,000 – 2,500 BC). Sites like Giant's Grave & Giant's Cave and Cavan Burren Park Megalithic Stones feature ancient megalithic tombs and sacred stones, often associated with local legends. Cuilcagh Mountain itself has historic ruins dating back to the 19th century, adding to the area's cultural depth.
While the Cuilcagh Boardwalk Trail is a popular attraction, dogs are generally not permitted on the boardwalk section to protect the sensitive blanket bog environment and local wildlife. It's best to check specific regulations for each natural monument if you plan to visit with a dog.
The diverse habitats support a variety of wildlife. In Cladagh Glen, you might spot silver-washed fritillaries, pine martens, red squirrels, and dippers. Cuilcagh Mountain's blanket bog and grasslands are home to a range of animal, bird, and insect life, including the rare Golden Plover. The pristine nature of these areas makes them important ecological sites.
Yes, Cladagh Glen features an impressive natural arch over the Cladagh River, which is how the Marble Arch Caves get their name. The reserve is also known for its mystical caves and evidence of underground rivers. Additionally, Pollnagollum Cave and Waterfall is part of a complex cave system, though access into the cave itself requires proper equipment and experience.
Visitors frequently appreciate the dramatic scenery, the unique geological formations, and the tranquility of the ancient woodlands. The panoramic views from mountain summits like Cuilcagh are often highlighted, as are the opportunities to connect with nature and explore significant historical sites. The area's status within a UNESCO Global Geopark also adds to its appeal, drawing those interested in its ecological and geological importance.


Extend your search for the best caves by checking out these guides of the top ones around Tullybrack Or Ora More: