Best natural monuments around Derrylester offer a landscape of forests, mountains, and unique geological formations. This region, understood to be within or adjacent to County Fermanagh, Northern Ireland, is known for its natural beauty. Visitors can explore a variety of features, from underground caves to scenic viewpoints and ancient woodlands. The area provides opportunities for outdoor activities amidst diverse natural settings.
Last updated: June 29, 2026
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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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Beautiful cascading waterfalls along Cuilcagh Way, situated at the foothills of Cuilcagh Mountain. These multi-tiered waterfalls are a delightful sight as you wind through a forest of lichen, ferns, and wild seasonal bluebells.
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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 Cuilcagh Mountain Park sprawls 6,170 acres (2,500 ha) on the northern slopes of the spectacular Cuilcagh Mountain. Founded in 1998, the park works to conserve the bogland habitats and restore damaged peatland. Towering at 2,188 feet (665 m), the mountain is one of the highest points of Ireland. The limestone rock was formed over 300 million years ago from the remains of tiny sea creatures when what is now Ireland would have been covered by a shallow tropical sea. You can explore the area on a network of trails, but it's best to park your bike and go on foot. With historic ruins dating back to the 19th century, diverse flora and fauna, and far-reaching views, there's a lot to discover here.
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The Marble Arch Caves show how spectacular the world can be below ground. The 7.1 mile (11.5 km) long limestone caves are the longest in Northern Ireland and are considered to be among the most spectacular in Britain. The mystical caves are formed by three rivers that flow off the Cuilcagh mountain and meet underground, forming the Cladagh. The caves are part of a UNESCO Geopark where you can learn about the area's geological heritage. The region is also rich in cultural heritage โ humans have inhabited these dramatic landscapes for over 7,000 years. Tickets, which include a guided tour, are ยฃ10 for adults and ยฃ5 for children. Concessions and 60+ pay ยฃ7.50.
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The Derrylester area, adjacent to County Fermanagh, offers a diverse landscape. You can explore spectacular underground caves at the Cladagh Glen Waterfall, which features a limestone gorge and mystical caves. The region is also known for its ancient woodlands, serene lakes like Lough Erne, and dramatic cliffs such as the Magho Cliffs within Lough Navar Forest.
You can discover beautiful waterfalls at several locations. The Cascades Waterfall, situated along the Cuilcagh Way, offers multi-tiered waterfalls in a forest setting. Another must-see is the Cladagh Glen Waterfall, known for its steep-sided gorge and an arch over the river formed by a collapsed cave roof.
Yes, the region boasts several stunning viewpoints. The Cliff Edge of Cuilcagh Mountain offers far-reaching views from one of Ireland's highest points. Additionally, Lough Navar Forest provides breathtaking views over Lough Erne and the surrounding countryside from its Magho Cliffs.
The natural monuments around Derrylester are rich in wildlife. In areas like Lough Erne and Castle Archdale Forest Park, you might spot otters, herons, and kingfishers. Lough Navar Forest is home to red squirrels and deer, while Crom Estate is known for its ancient yew trees and diverse wildlife, including red squirrels and pine martens. The Cladagh Glen area also hosts silver-washed fritillaries and elusive pine martens and red squirrels.
While the main attractions are well-known, the broader region offers less-trafficked gems. For instance, Pollnagollum Cave within the Marble Arch Caves Global Geopark is a hidden gem that has even been featured in television productions, offering a unique subterranean experience for those seeking something off the beaten path.
The area around Derrylester offers a variety of outdoor activities. You can find extensive hiking trails, such as the challenging Cuilcagh Mountain Park loop or the moderate Florence Court Red Trail. There are also running routes like the Cuilcagh Mountain Park running loop, and cycling options including the Florence Court loop from Drumlaghy. For more details on routes, you can explore the hiking guide, running guide, and cycling guide for Derrylester.
Yes, there are hiking trails for various skill levels. For an easy walk, consider the Marble Arch Caves via Cladagh River trail. Moderate options include the Florence Court Red Trail and the Cuilcagh Mountain from Caran Road. If you're looking for a challenge, the Cuilcagh Mountain Park loop is a difficult but rewarding hike. You can find more information in the hiking guide for Derrylester.
Absolutely. The region provides several cycling routes. You can enjoy a moderate Florence Court loop from Drumlaghy or explore longer, more challenging routes like the Florence Court โ Lower Lough MacNean loop. For a comprehensive list of cycling options, refer to the cycling guide for Derrylester.
Many natural monuments in the area are suitable for families. Castle Archdale Forest Park on Lough Erne offers lakeside trails and picnic spots. Florence Court provides well-maintained trails ideal for leisurely family walks. The Marble Arch Caves also offer guided tours that can be an engaging experience for children interested in geology.
The natural monuments around Derrylester offer beauty throughout the year, but spring and summer are particularly popular. In spring, areas like Cladagh Glen are carpeted with bluebells, wood anemones, and wild garlic. Summer provides pleasant weather for hiking and exploring. Autumn brings magical colors to the woodlands, while winter offers a serene, quiet experience, though some trails might be more challenging due to weather conditions.
Yes, the region blends natural beauty with rich history. Devenish Island on Lough Erne is known for its monastic ruins and historical significance, accessible by boat. The Cuilcagh Mountain Park also contains historic ruins dating back to the 19th century, adding a cultural layer to the natural landscape.
Given the varied terrain and weather, it's advisable to wear layers and sturdy, waterproof footwear. If you plan to explore caves, a light jacket might be useful even in warmer months. For mountain trails like Cuilcagh, be prepared for changing weather conditions, including wind and rain, regardless of the season.
Many outdoor areas in the region are dog-friendly, but it's always best to check specific site regulations. Forest parks and open trails generally welcome dogs on a lead. For example, trails around Florence Court and Lough Navar Forest are often suitable for walks with dogs, allowing you to enjoy the natural beauty together.


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