5.0
(3)
45
riders
3
rides
Gravel biking around Castlebar offers diverse landscapes, from rugged mountain terrain to tranquil lakeside routes and ancient woodlands. The region is characterized by extensive trail networks, including dedicated greenways and off-road paths. Features include the Croaghmoyle and Nephin Mountain Ranges, Lough Lannagh, and Raheens Wood, providing varied experiences for cyclists. The terrain encompasses farmland, bog land, hills, lakes, and rivers, suitable for gravel biking.
Last updated: July 10, 2026
3
riders
31.7km
02:15
270m
270m
This difficult 19.7-mile (31.7 km) gravel biking route combines the Great Western Greenway and Furnace Loop in County Mayo, Ireland.
65.7km
04:23
500m
500m
This difficult 40.8-mile gravel biking loop from Claremorris to Kiltimagh features 1646 feet of elevation gain and passes Mayo Abbey.

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8
riders
26.0km
01:55
500m
500m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.0
(2)
5
riders
23.6km
01:26
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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 characteristic stone bridge forms a crucial junction on the 18 km stage between Newport and Mulranny. The bridge spans the Burrishoole River at the point where the fresh water from Lough Feeagh mixes with the salty tidal waters of Clew Bay. From the Greenway, you have an unobstructed panoramic view here of the nearby 15th-century abbey ruins and the fish traps that have been used for centuries to catch wild salmon and eel, against the backdrop of the rugged Nephin Beg Mountains.
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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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Be sure to use the Greenway instead of the N59 expressway on this section! This is a beautiful stretch through forests and meadows.
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Mayo Abbey is a picturesque village located in County Mayo. The village is steeped in history, with its most notable landmark being the ruins of the ancient Mayo Abbey, a monastic site founded by Saint Colman in the 7th century.
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Claremorris is a charming town in County Mayo, known for its rich history, cultural events like the Claremorris Drama Festival, and nearby scenic landscapes, including Croagh Patrick, making it a great stop for exploring the west of Ireland.
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The only way to get a bike here is to carry it 😉
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This guide highlights 4 distinct traffic-free gravel bike trails around Castlebar, ranging from moderate to difficult in intensity. These routes offer a variety of experiences, from scenic greenways to more challenging off-road climbs.
Castlebar and the wider Mayo region offer incredibly diverse terrain for gravel biking. You'll find a mix of dedicated greenways with solid surfaces, fire roads, and some singletrack within areas like Wild Nephin National Park. Expect varied landscapes including farmland, bog land, hills, lakesides, and woodlands, often featuring thick mosses and heather, especially in the mountain ranges.
While many routes in this guide are rated moderate to difficult, the broader Castlebar area, particularly sections of the Great Western Greenway and the Lough Lannagh loop, offers easier, traffic-free paths suitable for families. These routes are generally flat and well-maintained, providing a pleasant cycling experience away from cars.
Castlebar's gravel trails often pass through stunning natural and historical sites. You might encounter the dramatic landscapes of the Croaghmoyle and Nephin Mountain Ranges, serene lakeside views around Lough Lannagh, or the ancient woodlands of Raheens Wood. Notable highlights include the impressive Nephin summit, the historic Moore Hall ruins, and scenic viewpoints like Lough Mask viewpoint.
Yes, several routes in the area are designed as loops, allowing you to start and finish at the same point. For example, the challenging From Claremorris to Kiltimagh loop offers a substantial ride, while the Pigeon Hole Cave – Stone Archway Passage loop from Ashford Castle provides a moderate circular option.
Spring and autumn generally offer the most pleasant conditions for gravel biking in Castlebar, with milder temperatures and beautiful seasonal colors. These seasons also tend to be less crowded than peak summer, allowing for a more tranquil experience on the traffic-free routes. Always check local weather forecasts, as conditions can change rapidly in Ireland.
Many of the greenways and public trails around Castlebar, including sections suitable for gravel biking, are dog-friendly. However, it's crucial to keep your dog on a leash, especially in areas with livestock or wildlife, and to always clean up after them. Specific rules may vary by location, so look for signage at trailheads.
Yes, the Great Western Greenway and Furnace Loop incorporates sections of this renowned off-road route. The Great Western Greenway itself is a fantastic traffic-free option, linking Castlebar to Turlough and beyond, offering scenic views of the surrounding Mayo landscape.
The komoot community highly rates the cycling experiences around Castlebar, with an average score of 4.5 out of 5 stars. Reviewers often praise the stunning natural beauty, the variety of terrain, and the peaceful, traffic-free nature of the routes, making it an ideal destination for those seeking an escape into nature on their gravel bike.
Absolutely. For experienced riders seeking a challenge, routes like the Skelp Pass – Skelp Off-Road Climb loop from Westport House offer significant elevation gain and demanding off-road sections. These routes provide a rewarding experience with panoramic views for those ready for a more strenuous ride.
Castlebar is well-connected by public transport, and some bus services allow bikes, though it's always best to check with the operator beforehand. The town's central location also makes it a good starting point for accessing various greenways and trail networks, with some routes, like the Castlebar Greenway Network, directly linking to the town center.
For visitors, Castlebar offers convenient bike rental services. Establishments like Bikes & Boards and The Bike Clinic are available in town, making it easy to rent a gravel bike or hybrid to explore the greenways and surrounding traffic-free areas.

