Natural monuments around Lesky feature a landscape characterized by ancient geological formations and historical sites. The region offers diverse natural environments, including limestone gorges, extensive cave systems, and significant megalithic structures. Visitors can explore ancient forests, discover unique rock formations, and experience varied outdoor settings.
Last updated: May 2, 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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Visitors frequently enjoy the historical and natural significance of Giant's Grave & Giant's Cave, known for its megalithic tombs and local legends. Another highly appreciated site is Cavan Burren Park Megalithic Stones, an ancient Stone-Age park with unique geological and archaeological features. For those seeking natural beauty, Cladagh Glen Waterfall offers a stunning limestone gorge, mystical caves, and beautiful waterfalls.
Yes, several natural monuments around Lesky are suitable for families. Cavan Burren Park Megalithic Stones offers trails through an ancient landscape that can be explored by all ages. Cladagh Glen Waterfall provides a beautiful forest setting with waterfalls and caves, perfect for a family outing. While Pollnagollum Cave and Waterfall is accessible, caution is advised with very small children due to potentially unstable and slippery rocks.
Lesky's natural monuments showcase a diverse range of geological formations and landscapes. You can explore ancient limestone gorges, extensive cave systems like Pollnagollum Cave, and impressive waterfalls such as Cladagh Glen Waterfall. The region also features significant megalithic structures, ancient ash wood forests, and the bogland habitats of Cuilcagh Mountain.
Absolutely. Lesky is rich in sites that blend natural beauty with historical significance. Giant's Grave & Giant's Cave features ancient megalithic tombs with fascinating local legends. Cavan Burren Park Megalithic Stones is an ancient Stone-Age park with mythological sacred stones, offering a unique archaeological experience. The Cliff Edge of Cuilcagh Mountain also has historic ruins dating back to the 19th century.
The area around Lesky offers a variety of outdoor activities. You can find numerous hiking opportunities, including easy trails like the Belmore Forest loop via Pollnagollum Cave or the Marble Arch Caves via Cladagh River. For cycling enthusiasts, there are MTB trails and road cycling routes available. You can explore more options on the Easy hikes around Lesky, MTB Trails around Lesky, and Road Cycling Routes around Lesky guide pages.
Yes, there are many hiking trails. For example, you can enjoy an easy hike on the Belmore Forest loop, which passes by Pollnagollum Cave. The Cuilcagh Mountain Park also offers a network of trails to explore its bogland habitats and historic ruins. You can find more detailed information and routes on the Easy hikes around Lesky guide page.
Visitors particularly appreciate the blend of natural beauty and ancient history. The mystical caves, dramatic gorges, and beautiful waterfalls, especially at Cladagh Glen Waterfall, are often highlighted. The unique geological and archaeological aspects of sites like Cavan Burren Park Megalithic Stones and the legends surrounding Giant's Grave & Giant's Cave also captivate many.
Yes, there are options for easy walks. The trails within Cavan Burren Park Megalithic Stones are generally accessible, allowing for a gentle exploration of the ancient landscape. The path leading to Cladagh Glen Waterfall also offers a pleasant walk through an ancient forest. For more specific easy routes, refer to the Easy hikes around Lesky guide.
When exploring Lesky's natural monuments, it's advisable to wear sturdy footwear, especially as some areas like Pollnagollum Cave and Waterfall can have unstable and slippery rocks. Depending on the weather, rain gear is recommended. For cave explorations, a good light and helmet are essential. Don't forget your camera to capture the stunning scenery and a water bottle for hydration.
While specific dog-friendly policies for each natural monument are not detailed, many outdoor areas in Lesky, such as forest trails and open landscapes, are generally welcoming to dogs on a leash. It's always best to check local signage or park regulations upon arrival for the most current information regarding pet access, especially in protected natural reserves or sensitive historical sites.
The geology of Lesky's natural monuments is primarily characterized by limestone formations. This ancient rock, formed over 300 million years ago from marine organisms, has created dramatic features such as steep-sided gorges, extensive cave systems like Pollnagollum Cave, and impressive waterfalls. The region also features unique geological and archaeological forest landscapes, as seen at Cavan Burren Park Megalithic Stones, and the bogland habitats of Cuilcagh Mountain.
Information on specific public transport routes directly to each natural monument is limited. Many natural sites in rural areas often require personal transportation or a combination of public transport to a nearby town followed by a taxi or a longer walk. It is recommended to plan your journey in advance and check local transport schedules for the most up-to-date information.


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