3.9
(46)
78
riders
19
rides
Mountain biking around Castlebar offers diverse terrain across County Mayo, Ireland. The region features a network of trails that traverse woodlands, riverbanks, and open landscapes. Riders can explore routes near lakes such as Lough Lannagh and Lough Mask, with views extending to the Nephin Mountain range and Croagh Patrick. The area provides varied elevations, from gentle paths to more challenging climbs, suitable for different skill levels.
Last updated: October 5, 2026
5.0
(2)
15
riders
26.6km
02:06
170m
170m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
5.0
(1)
6
riders
36.4km
02:12
270m
270m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

1.0
(1)
4
riders
22.2km
01:50
260m
260m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
1
riders
70.4km
04:25
390m
390m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
34.6km
02:20
390m
390m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
3.2
(33)
8
riders
23.9km
01:44
110m
110m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(2)
8
riders
17.2km
01:17
80m
80m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
5.0
(1)
3
riders
100km
06:55
1,030m
1,030m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
5
riders
113km
07:26
1,080m
1,080m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
4
riders
46.3km
02:49
510m
510m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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The Wild Nephin National Park is a rough, wild and uninhabited area in northwest Mayo. The highland is the Nephin Beg mountain range, to the west of the mountains is the Owenduff Bog, one of the last blanket bog systems in Western Europe.
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From this elevated point on the east side of the village, you have a spectacular 180-degree view over the 365 islands of Clew Bay and the imposing conical shape of the holy mountain Croagh Patrick (764 m) across the water. You look directly down onto the Mulranny Saltmarsh and the golden sandy beaches of Trawoughter Strand. This point marks the place where the Nephin Beg Range mountains abruptly transition into the coastal plain, giving you a unique perspective on the transition from rugged bog landscape to the vast Atlantic Ocean.
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Between Newport and Mulranny, the Greenway follows the old railway line through a varied landscape of reed fields, tidal water, peat bogs, and low hills. The path is wide, quiet, and gently sloping, with regular beautiful views of Clew Bay and the islands. Old bridges, stone walls, and quiet river arms give this part of the route a distinctly rural and almost timeless atmosphere.
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This robust 18th-century stone arch bridge forms the heart of Newport, spanning the Black Oak River. Unlike the higher railway viaduct, this bridge connects the village's main streets, offering a beautiful low perspective on the tidal flow and the colourful facades of the quay. The bridge is named after Princess Grace of Monaco, whose ancestors hailed from the nearby Drumilra valley, and it marks the transition from the sheltered river estuary to the open waters of Clew Bay.
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(Heritage Town & Greenway Hub) This picturesque town, also known as Ballyveaghan, forms the geographical heart of the Great Western Greenway and is the ancestral home of Princess Grace of Monaco. Newport (approx. 600 inhabitants) is located on the northeastern corner of Clew Bay, where the Black Oak River meets the sea, and is known for its rich maritime history and fishing. For cyclists on the Wild Atlantic Way, it is a crucial stop with essential amenities such as supermarkets (e.g. Centra), cozy pubs, and a unique atmosphere where the rugged Nephin Beg Mountains and the 365 islands of the bay converge.
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The Great Western Greenway follows the route of the railway from Westport to Achill, which reached Achill in 1895 and closed in 1937. The Greenway opened in 2011.
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Down, opposite the start of the path, the National Famine Memorial (1997) pays tribute to the victims of the Great Famine.
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The Boheh Stone is an ancient piece of Neolithic rock art that's thought to date from around 3800 BC. It later became known as St. Patrick's Chair and serves as an important waymarker on the Tóchar Phádraig pilgrimage route. On April 18th and again on August 24th each year, people gather to watch the setting sun seemingly roll down Croagh Patrick’s northern slopes, a phenomenon known as the Rolling Sun.
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Castlebar offers a diverse selection of mountain bike trails, with 19 routes available. This includes 8 easy trails, 10 moderate trails, and 1 difficult trail, catering to various skill levels.
Yes, Castlebar has 8 easy mountain bike trails perfect for beginners or those looking for a relaxed ride. A great option is the Western Way - Mayo Loop, an easy 13.8-mile (22.2 km) route in Wild Nephin National Park, suitable for all fitness and skill levels.
The terrain around Castlebar is varied, ranging from forest roads and riverside paths to open country trails. You'll find single tracks, and some routes may feature more technical elements like drops, jumps, rock faces, and rock gardens for advanced riders. The region's diverse landscapes include woodlands, riverbanks, and areas with views of the Nephin Mountain range and Croagh Patrick.
For families, the easier trails are ideal. The Western Way - Mayo Loop is an easy 13.8-mile (22.2 km) trail suitable for all fitness and skill levels. Additionally, sections of the Castlebar Greenway Network, while part of a larger network, offer gentler paths that can be enjoyed by families, especially around Lough Lannagh and Raheens Wood.
Many trails in natural areas around Castlebar are dog-friendly, especially those on forest roads and open paths. However, it's always best to check local signage or specific trail guidelines for any restrictions, particularly in protected areas or on private land. Always keep your dog under control and clean up after them.
Many routes offer scenic views of the surrounding landscapes, including Clew Bay, Croagh Patrick, and the Nephin Mountain range. Specific highlights you might encounter include Nephin itself, offering panoramic views, and areas around Lough Mask Bridge and Lough Nafooey. The Great Western Greenway Loop specifically offers views of Clew Bay, Croagh Patrick, and the Nephin Mountain range.
Yes, many mountain bike trails around Castlebar are designed as loops. Examples include the popular Great Western Greenway Loop, the Ashford Castle to Lough Mask and Cong Wood loop, and the Pigeon Hole Cave loop from Clonbur. These circular routes allow you to start and finish at the same point.
The mountain bike trails around Castlebar are highly rated by the komoot community, with an average score of 3.8 stars from over 40 reviews. Riders often praise the diverse terrain, the scenic views of lakes and mountains, and the variety of routes suitable for different abilities.
Parking availability varies by trailhead. For trails like those connected to the Great Western Greenway or within Wild Nephin National Park, designated parking areas are usually provided. For routes near Lough Lannagh or Raheens Wood, local parking options may be available. It's advisable to check specific route details or local council websites for the most accurate parking information.
Public transport options to specific trailheads can be limited, especially for more remote routes. However, Castlebar itself is a hub, and some parts of the Castlebar Greenway Network are accessible from within the town. For longer trails like the Great Western Greenway, you might find bus services connecting to towns along the route, but direct access to all trailheads via public transport may require some planning.
Castlebar town offers a good selection of cafes, pubs, and accommodation options. For trails closer to the town center, such as those along the Castlebar Greenway Network, you'll find amenities easily accessible. For routes further afield, like those near Cong Woods or Wild Nephin National Park, it's a good idea to plan your stops in advance or bring your own refreshments.
The spring and summer months (April to September) generally offer the most favorable conditions for mountain biking in Castlebar, with milder weather and longer daylight hours. Autumn can also be beautiful with changing foliage. While trails are accessible year-round, winter can bring wetter conditions, making some trails muddy or slippery, so appropriate gear and caution are advised.


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