4.5
(122)
6,917
riders
257
rides
Road cycling routes around Y Felinheli navigate the varied terrain of North Wales, situated along the Menai Strait. The region features a mix of coastal roads, river valleys, and routes ascending into the foothills of Snowdonia, offering diverse gradients. Road cyclists can expect views of historical landmarks and the surrounding natural landscape. The area provides routes with both gentle inclines and more challenging climbs.
Last updated: July 8, 2026
92
riders
43.5km
02:07
600m
600m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
58
riders
32.3km
01:27
310m
310m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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5.0
(3)
50
riders
22.1km
00:58
160m
160m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
5.0
(1)
20
riders
35.9km
01:34
280m
280m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
20
riders
32.2km
01:24
230m
230m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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the old railway line is flat and gets you off the main road.
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Right opposite the layby are the two main blocks - a good description and link to the topo is at https://www.climber.co.uk/outdoor/bouldering/around-the-bloc-the-cromlech-boulders-llanberis/ There are more higher up on the hill and you will find boulderars here at most times of the weather permits.
3
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If on road bike's gatorskins can handle the gravel and grit
0
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Great piece of road with dramatic views, a speedy descent toward Llanberis
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Segontium Romon Fort is an impressive excavated fortification located just outside Caernarfon. It was founded by Agricola in AD77, and it was garrisoned for over three hundred years. It was the longest-held Roman fort in Wales and used to hold a 'cohors milliaria,' a regiment of about 1,000 auxiliary infantry, mainly recruited from Belgium and Germany. It was linked by Roman roads to the main legionary bases at Chester and Caerleon by a series of marching camps and other forts.
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the climb up to pen y pass affords lovely views of Snowdon and crib goch if the weather is right 😎
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Road cycling routes around Y Felinheli offer a diverse mix of terrain. You'll find coastal roads along the Menai Strait, scenic river valleys, and ascents into the foothills of Snowdonia. This provides options ranging from routes with gentle inclines to more challenging climbs.
Yes, Y Felinheli offers several easy road cycling routes. For instance, the Caernarfon Harbour – Caernarfon Castle loop from Church Island is an easy 22.5 km path with gentle climbs, providing views of Caernarfon Harbour and the historic castle. Another accessible option is the Segontium Roman Fort loop from Caernarfon, an easy 36.1 km route.
Experienced cyclists looking for a challenge will find routes with significant elevation gain. The Nant Peris Valley – Mallory's Café loop from Menai Strait is a moderate 43.5 km route featuring nearly 600 meters of elevation gain through the Nant Peris Valley. Another option is the Llanberis Pass – Nant Peris Valley loop from Bethel, a 32.1 km trail leading through the scenic Llanberis Pass.
Routes vary significantly in distance and elevation. You can find shorter, flatter options like the Caernarfon Harbour – Caernarfon Castle loop from Church Island at 22.5 km with 160m elevation gain. For longer rides with more climbing, routes such as the Nant Peris Valley – Mallory's Café loop from Menai Strait cover 43.5 km with almost 600m of ascent.
While specific 'family-friendly' designations for road cycling can depend on children's experience, routes with lower difficulty and less traffic are generally preferred. The easy routes mentioned, such as the Caernarfon Harbour – Caernarfon Castle loop from Church Island, with its gentle climbs and scenic views, could be suitable for families with older, confident children.
Many routes offer views of historical landmarks. You can cycle past impressive sites like Caernarfon Castle, a UNESCO World Heritage site, or explore the area around Segontium Roman Fort. Other nearby historical points of interest include Dolbadarn Castle and Penrhyn Castle.
Absolutely. The region is known for its scenic beauty. Routes often provide views of the Menai Strait, the surrounding natural landscape, and the foothills of Snowdonia. The Caernarfon Harbour – Caernarfon Castle loop from Church Island offers picturesque views of the harbour and castle, while routes through the Nant Peris and Llanberis Valleys provide stunning mountain vistas.
The area is highly rated by the komoot community, with an average score of 4.5 stars from over 120 reviews. Cyclists often praise the varied terrain, which includes coastal roads and mountain passes, and the opportunity to experience both historical landmarks and the natural beauty of North Wales.
Yes, many of the road cycling routes around Y Felinheli are designed as loops, allowing you to start and finish in the same location. Examples include the Nant Peris Valley – Mallory's Café loop from Menai Strait and the Llanberis Pass – Nant Peris Valley loop from Bethel.
Beyond the stunning landscapes, you can find natural attractions such as Elidir Fawr Summit (visible from some routes), the Newborough National Nature Reserve and Forest a bit further afield, and the historic Dinorwig Slate Mine Ruins. The Ceunant Mawr Waterfall is also a notable natural feature in the wider area.
There are over 270 road cycling routes available around Y Felinheli on komoot, offering a wide range of options for different skill levels and preferences.


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