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riders
7
rides
Mountain biking around Fathom Lower offers diverse terrain, from coastal paths along the Newry Ship Canal to challenging mountain ascents within the Ring of Gullion and Mourne AONB. The region features a mix of rolling hills, forested sections, and open mountain trails. Riders can expect varied surfaces, including canal towpaths, forest tracks, and rocky singletrack.
Last updated: November 10, 2026
65.9km
05:37
1,280m
1,280m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
2
riders
40.3km
03:09
910m
910m
Hard mountain bike ride. Very good fitness required.

8
riders
45.2km
03:00
190m
190m
Moderate mountain bike ride. Good fitness required.
6
riders
63.4km
04:46
920m
920m
Hard mountain bike ride. Very good fitness required.
3
riders
59.7km
03:29
540m
540m
Moderate mountain bike ride. Good fitness required.
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Two joined medieval churches under Slieve Gullion. On our Ring Dyke climbing loop: cyclesoutharmagh.com/routes/the-ring-dyke
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The Ring of Gullion is a circular route following off-road trails, quiet country lanes and forest tracks from Newry around the volcanic landscape of the Ring of Gullion AONB. This section follows some fun gravel trails.
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Taaffes Castle (2026-08-07): https://taaffescastle.com/ TRIPADVISOR (Taaffes Castle Bar, 2026-08-07): https://www.tripadvisor.ie/Restaurant_Review-g315880-d2223151-Reviews-Taaffes_Castle_Bar-Carlingford_Cooley_Peninsula_County_Louth.html
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This charming seaside town overlooks the Mourne Mountains, whose silhouette rises along the coast of Northern Ireland. Carlingford is very lively at weekends thanks to its many pubs and restaurants, which attract visitors from the north, and is famous for its oysters. The village has several historical sights, such as the small King John's Castle, with its romantic silhouette overlooking the sea, and Taaffe's Castle, a former 16th-century merchant's house located a little further from the quay.
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The Tholsel is undoubtedly one of the most unique structures in the heart of Carlingford. This medieval city gate, originally built in the 15th century, is the only remaining gate from the original town wall and served for centuries as the ceremonial and administrative entrance to the town.
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Once you leave the city of Newry behind, you cycle towards tranquility on An Bealach Glas, also known as the Carlingford Lough Greenway. This flat, smoothly asphalted path follows the banks of the canal and offers spectacular views of the river's mudflats along the way, where you can spot numerous wading birds and sometimes even a stray seal. The route is a true sensory experience: the salty sea air blows towards you while the mountains seem to get closer and closer. The absolute endpoint of this section is the historic Victoria Lock, an impressive lock complex from 1850 that marks the transition from the canal to the open waters of Carlingford Lough. It is the perfect place to get some fresh air and enjoy the maritime dynamics before continuing your journey to the coast.
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Here you will be treated to a magnificent view of the cathedral. The imposing tower of Saint Patrick and Saint Colman rises majestically above the city, dominating the skyline with its neo-Gothic architecture. This cathedral, completed in 1829, is unique as it was the first Catholic cathedral built in Ireland after the relaxation of the penal laws. From this point, you can see the beautiful texture of the local granite from the Mourne Mountains, from which the church is built.
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Taaffe's Castle is a fortified merchant's house dating from the early 16th century, built by the wealthy Taaffe family, who later became the Earls of Carlingford. Situated near the old harbour, the building originally served as a trading post on the ground floor with residential floors above. The architecture displays typical defensive features such as machicolations, narrow loopholes, spiral staircases, and multi-level garderobes. [curiousireland.ie], [castles.nl], [carlingfor...centre.com] The main structure is a four-storey rectangular tower, later extended with a 16th-century northern extension. Its location and construction clearly demonstrate Carlingford's importance as a thriving trading town during that period. After the 17th century, it fell into disuse, and eventually fell into disuse. Today, it forms part of a pub complex and remains a striking example of medieval urban defensive architecture in Carlingford.
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There are 7 mountain bike trails documented on komoot around Fathom Lower. These routes offer a diverse range of experiences, from coastal paths to challenging mountain ascents.
The mountain bike trails in Fathom Lower primarily range from moderate to difficult. There are 5 moderate trails and 2 difficult trails, offering options for riders with varying levels of experience looking for a challenge.
While there are no trails specifically classified as 'easy' in Fathom Lower, some of the moderate routes, particularly those along the Newry Ship Canal, might be suitable for riders with some basic mountain biking experience. For example, the Newry Ship Canal loop from Warrenpoint is a moderate 33.8 km path with minimal elevation gain.
You can expect a diverse range of terrain, including coastal paths along the Newry Ship Canal, forested sections, and open mountain trails within areas like the Ring of Gullion and Mourne AONB. Surfaces vary from canal towpaths and forest tracks to rocky singletrack, providing a varied riding experience.
Yes, all the mountain bike trails listed for Fathom Lower are loop routes. This includes popular options like the challenging Newry, Carnavaddy and Annaloughan Mountain loop – Ring of Gullion and the scenic Carlingford Castle loop from Newry.
The area is highly rated by the komoot community, with an average score of 5.0 stars from over 1 review. Mountain bikers often praise the diverse terrain, from coastal views to challenging mountain ascents, and the opportunity to explore scenic areas like the Ring of Gullion and Mourne AONB.
Many trails offer views or pass near interesting landmarks. For example, you might encounter natural monuments like Slieve Gullion Summit or historical sites such as the Druids' Circle in Ravensdale Forest. The Carlingford Castle loop from Newry offers coastal views and passes historical sites.
Given that most trails are classified as moderate to difficult, they might be more suitable for families with older children or those who are experienced mountain bikers. For a less strenuous option, the canal paths offer flatter sections, but overall, the region leans towards more challenging rides.
While specific regulations for dogs on mountain bike trails can vary, generally, dogs are welcome on many public trails in the region, especially on forest tracks and canal paths. However, it's always best to check local signage or specific park rules for areas like the Ring of Gullion or Mourne AONB, and ensure your dog is well-behaved and on a leash.
The best time to go mountain biking in Fathom Lower is generally during the spring, summer, and early autumn months (April to October) when the weather is milder and trails are drier. Winter riding can be challenging due to colder temperatures, shorter daylight hours, and potentially wet or muddy trail conditions.
Absolutely. The region is known for its challenging mountain ascents. The Newry, Carnavaddy and Annaloughan Mountain loop – Ring of Gullion, for instance, is a difficult 65.9 km trail with over 1270 meters of elevation gain, offering a substantial workout and rewarding views.
Trail durations vary significantly based on length and difficulty. Shorter, moderate routes like the Newry Ship Canal loop from Warrenpoint can take around 2 hours. Longer, more difficult trails such as the Newry, Carnavaddy and Annaloughan Mountain loop – Ring of Gullion can take over 5 hours to complete.


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