5.0
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237
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9
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Mountain biking around Fathom Lower features a landscape characterized by varied terrain, including forested areas, coastal paths, and mountainous sections. The region offers routes that traverse both natural and historical points of interest. Elevations vary, with some trails leading through hills and others offering more significant climbs. The area provides a mix of singletrack and wider paths suitable for mountain biking.
Last updated: November 2, 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.

40
riders
12.0km
01:11
300m
300m
Moderate mountain bike ride. Good fitness required.
10
riders
70.2km
04:20
290m
290m
Moderate mountain bike ride. Good fitness required.
8
riders
45.2km
03:00
190m
190m
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 9 mountain bike trails around Fathom Lower listed in this guide. These routes offer a mix of moderate and difficult options, catering to various skill levels.
The mountain bike trails around Fathom Lower are predominantly moderate, with 7 routes falling into this category. There are also 2 more difficult trails for experienced riders seeking a challenge.
While specific 'easy' routes are not highlighted, many of the moderate trails, especially those winding through forested areas or along coastal paths, can be suitable for families with some mountain biking experience. Always check the route details for elevation and terrain before heading out.
The region offers varied terrain, including forested areas, coastal paths, and mountainous sections. You'll find a mix of singletrack and wider paths, with elevations varying from gentle hills to more significant climbs.
While exploring the trails, you can encounter several natural monuments. Consider visiting Slieve Gullion Summit for expansive views, or the North Cairn of Slieve Gullion and Calliagh Beara's Lough. The area is characterized by rugged terrain and diverse habitats.
Yes, several routes pass by historical points of interest. For example, the Ruins in Ravensdale Forest – Ravensdale Creek loop from Drumnasillagh winds through dense forest, passing historical ruins. You might also encounter sites like the Druids' Circle in Ravensdale Forest or the Long Woman's Grave Memorial.
The mountain bike routes in Fathom Lower are highly rated by the komoot community, with an average score of 5.0 stars from over 3 reviews. Many mountain bikers praise the varied terrain, which includes coastal paths, forested trails, and challenging mountain loops.
For experienced riders looking for a longer challenge, the Newry, Carnavaddy and Annaloughan Mountain loop is a difficult 41.0-mile (65.9 km) trail offering challenging climbs and expansive mountain views. Another option is the Warrenpoint Shore Road – Carlingford Castle loop from Rostrevor, a 43.6-mile (70.2 km) coastal route.
Absolutely. Mountain biking around Fathom Lower is defined by coastal paths. The Warrenpoint Shore Road – Carlingford Castle loop from Rostrevor is a prime example, leading through coastal areas and past historical sites.
Yes, several trails wind through forested areas. The Ruins in Ravensdale Forest – Ravensdale Creek loop from Drumnasillagh is a moderate path that takes you through dense forest, following a creek and passing historical ruins.
Given the varied terrain including coastal paths and forested areas, spring and autumn generally offer pleasant temperatures and beautiful scenery. Summer can also be great, but always check local weather conditions, especially for mountainous sections.
Yes, you can incorporate historical structures into your ride. The Bagenal's Castle loop from Warrenpoint is a moderate route that includes a visit to the castle. Additionally, the Warrenpoint Shore Road – Carlingford Castle loop from Rostrevor passes by Carlingford Castle.


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