Best natural monuments around Drumharriff encompass a region shaped by significant geological processes. The area features a blend of volcanic remnants, glacial landforms, and serene loughs. These natural features offer diverse landscapes for exploration, from prominent mountain peaks to tranquil waters. Visitors can experience ancient geological history and unique natural attractions within this part of Ireland.
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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Great walk, very touristy but it's worth the detour! Be careful of the crowds (on weekends and in summer I dare not imagine!). However, BE CAREFUL, the summit is not accessible, you have to pass the protective barriers which allow the wild nature to be preserved from our steps and from this crowd of people. If we, the Komoot community, start to do this all the tourists will allow themselves and the landscape will never be so beautiful again! (Ps: no need to climb to the top to already see enough in the eyes!)
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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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Cuilcagh Mountain sits right on the border between Ireland and Northern Ireland. From the top, you can enjoy magnificent views across the rolling hills of Ireland in all directions.
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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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The region boasts several highly-rated natural monuments. Among the most popular is the Cuilcagh Boardwalk Trail (Stairway to Heaven), known for its wooden walkway across expansive moorland leading to a historic Bronze Age burial mound. Another favorite is the Cuilcagh Mountain Summit, offering extensive views after a challenging ascent.
Yes, you can explore beautiful waterfalls in the area. The Cascades Waterfall, located along the Cuilcagh Way, features multi-tiered waterfalls winding through a forest of lichen and ferns. Additionally, Cladagh Glen Waterfall offers a spectacular arch over the river within a limestone gorge, known for its mystical caves and ancient ash trees.
The natural monuments around Drumharriff showcase a rich geological history. You'll find evidence of past volcanic activity, such as the extinct volcano Slieve Gullion, which also hosts the highest Passage Tomb in the British Isles. The region also features significant glacial landforms like drumlin belts, moraines, and eskers, sculpted by ancient ice sheets.
While many trails in the area can be challenging, the Cuilcagh Boardwalk Trail is popular with families, though it requires a good level of fitness. For gentler options, Drumharriff Forest itself offers a pleasant looped walk, and the serene environment of Camlough Lake provides a picturesque setting for a family outing.
The best time to visit largely depends on your preferred activity. Spring brings vibrant wildflowers like bluebells and wild garlic to areas like Cladagh Glen, while autumn offers magical colors. Summer provides generally milder weather for hiking, though the Cuilcagh Boardwalk can be busy. Always check local weather conditions before your visit, as conditions can change rapidly on mountain trails.
Yes, several natural monuments have significant historical connections. Cuilcagh Boardwalk Trail leads to a historic Bronze Age burial mound. Slieve Gullion, an extinct volcano, is home to the highest Passage Tomb in the British Isles and the ancient North Cairn, offering a glimpse into the region's ancient past.
Absolutely. The area around Drumharriff is excellent for outdoor activities. You can find various hiking routes, including easy options like the Marble Arch Caves via Cladagh River, or more challenging trails like the Cuilcagh Mountain Summit ascent. For runners, there are routes like the Florence Court Red Trail or the longer Cuilcagh Mountain Park running loop. You can find more details on these and other routes in the easy hikes around Drumharriff guide or the running trails around Drumharriff guide.
Visitors frequently praise the breathtaking panoramic views, especially from the Cuilcagh Mountain Summit. The unique experience of walking the Cuilcagh Boardwalk Trail through the moorland is also a highlight. Many appreciate the tranquility of places like Camlough Lake and the dramatic beauty of the waterfalls and ancient forests, often noting the sense of peace and connection to nature.
Areas like Cladagh Glen are known for their diverse flora and fauna. With a keen eye, you might spot elusive pine martens and red squirrels. The loughs, such as Camlough Lake and Drumharriff Lough, also serve as important habitats for local wildlife, including various bird species.
Yes, the region offers several road cycling routes. You can explore scenic loops such as the Lough Adorn – Drumlonan lough loop or the Florence Court loop. These routes allow you to experience the diverse landscapes surrounding the natural monuments. More information can be found in the road cycling routes around Drumharriff guide.
The Cuilcagh Mountain area, including the Cliff Edge of Cuilcagh Mountain, is significant for its geological history and conservation efforts. The limestone rock was formed over 300 million years ago from ancient sea creatures. The Cuilcagh Mountain Park, established in 1998, actively works to conserve its unique bogland habitats and restore damaged peatland, making it a vital ecological site.
Yes, the region features tranquil loughs. Camlough Lake, stretching over two kilometers, is a natural highlight valued for its serene environment and picturesque setting, offering opportunities for peaceful recreation. Drumharriff Lough is another small standing waterbody appreciated for its natural beauty and as a habitat for local wildlife.


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