Natural monuments around Tannaghmore offer opportunities to explore diverse landscapes. The area, historically known as "the big grassy field," features both managed natural spaces and significant geological formations. Visitors can find a blend of cultivated natural elements and historical sites. The region provides various natural features for outdoor engagement.
Last updated: June 30, 2026
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This impressive stone circle, dating from the late Neolithic to early Bronze Age, consists of over 50 upright stones enclosing a diameter of around 35 metres. Access is via a narrow hedge-lined path that takes you directly to the entrance of the circle
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The historic gardens at Seaforde are situated both within and adjacent to the old walled garden, whose structure dates from the early half of the 18th century. The hidden, micro-climate gardens boast Ireland’s oldest living maze and support a renowned collection of plants, collected from distant corners of the world thanks to the travels of keen plantsman Patrick Forde. The gardens also include an arboretum containing champion trees and rare species. The Tropical Butterfly House is the atmospheric, jungle home to a myriad species of free flying butterflies. All peacefully at home surrounded by exotic and tropical plant life.
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One of the best kept Circles I know of. The late Neolithic to earlier Bronze Age monument was excavated in 1937–1939 but its development and date are still not entirely clear. Excavation uncovered a slab feature with three compartments at the west end of the cairn, which could suggest the court tomb tradition, and a single stone cist at the east end which could point to the passage tomb tradition. Cremated remains representing at least seven individuals and some Neolithic pottery were found. Parallels for the outer stone circle with sites in Cumbria have been suggested.
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The Dolmen can be found on the north east shore of Loughinisland Lake, within sight of Loughinisland Church. A slightly displaced capstone covers a rectangular chamber of which three side stones survive. An early account suggests that this was formerly inside a large circular cairn and approached through a lintelled passage, so it may be the remains of a passage tomb. It is famous as the platform from which Thomas Russell addressed a crowd of United Irishmen in 1803, after the main 1798 rising.
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From this point in the park, you can enjoy sublime views toward the towering Mourne Mountains of Northern Ireland.
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Slieve Croob stands at 534m and is the highest peak of the Dromara Hills, situated just north of the Mourne Mountains. From the summit, you can enjoy expansive views across County Down and toward the Mourne mountain range, a designated Area of Natural Beauty.
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what a great day spent up slieve croob weather was fabulous.. handy enuff on a nice path even saw a few cyclists 👍
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Tough climb to the summit, try and go on a clear day to get the best veiws.
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While Tannaghmore is historically known as 'the big grassy field,' the natural monuments in the surrounding area offer a mix of cultivated landscapes and significant geological or historical formations. You can find impressive viewpoints like Slieve Croob Summit, which offers expansive views, and ancient archeological sites such as Ballynoe Stone Circle. Additionally, places like Seaforde Gardens feature arboretums and unique plant collections.
Yes, the area is rich in history. You can visit Ballynoe Stone Circle, an impressive archeological site dating from the late Neolithic to early Bronze Age, consisting of over 50 upright stones. Another significant historical monument is Annadorn Dolmen, a prehistoric burial site with a displaced capstone, which may be the remains of a passage tomb.
Many natural monuments in the area are family-friendly. Ballynoe Stone Circle and Annadorn Dolmen are accessible for families. Seaforde Gardens and Tropical Butterfly House is particularly well-suited for families, offering gardens, a maze, and a butterfly house. The View of the Mourne Mountains and Newcastle is also a great spot for families to enjoy scenic vistas.
The region around Tannaghmore offers various outdoor activities. You can find numerous running and hiking trails. For example, there are easy hikes like the Dundrum Coastal Path, or more moderate options such as the Drumkeeragh Forest Park loop. You can explore more options on the Running Trails around Tannaghmore, Hiking around Tannaghmore, and Easy hikes around Tannaghmore guide pages.
Yes, there are several hiking trails available. You can enjoy easy walks like the Dundrum Coastal Path or explore moderate routes such as the Drumkeeragh Forest Park loop. For more detailed information and route suggestions, refer to the Hiking around Tannaghmore guide.
While there isn't a single 'best' time, visiting during clear weather is highly recommended, especially for viewpoints like Slieve Croob Summit to fully appreciate the expansive views. Spring and summer offer pleasant conditions for exploring gardens and outdoor sites, while autumn provides beautiful foliage. Winter walks can also be rewarding on suitable trails.
Yes, some natural monuments are dog-friendly. For instance, Ballynoe Stone Circle and Annadorn Dolmen are noted as dog-friendly, allowing you to bring your canine companion along for the visit. Always ensure dogs are kept on a lead and any waste is properly disposed of.
Visitors particularly appreciate the stunning panoramic views from elevated points like Slieve Croob Summit and the View of the Mourne Mountains and Newcastle. The historical significance and ancient atmosphere of sites like Ballynoe Stone Circle are also highly valued. The blend of natural beauty with historical context makes for a unique experience.
Parking availability varies by location. For example, Seaforde Gardens and Tropical Butterfly House explicitly mentions having parking facilities. For other sites, it's advisable to check local information or maps for designated parking areas nearby, as some may require roadside parking or have limited space.
While specific wildlife sightings can vary, places like Seaforde Gardens and Tropical Butterfly House are known for their diverse plant life and, as the name suggests, a tropical butterfly house. In more open natural areas, you might encounter local bird species and small mammals. The historical context of Tannaghmore as 'the big grassy field' also hints at a past rich in natural flora and fauna.
Yes, if you're looking for a challenge, the climb to Slieve Croob Summit is considered tough. It stands at 534m and offers rewarding expansive views from the top, making it a popular choice for those seeking a more strenuous outdoor experience. It's best to attempt this on a clear day for the best visibility.


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