4.7
(48)
3,328
riders
22
rides
Road cycling around Llandwrog offers diverse terrain, blending mountainous landscapes with picturesque coastlines. The region, situated near Snowdonia National Park, features challenging climbs and expansive views of the Irish Sea and Lleyn Peninsula. Cyclists can explore routes through broadleaf woodlands, historic former slate quarries, and a network of quiet country lanes. This area provides varied no traffic road cycling routes suitable for different fitness levels.
Last updated: May 12, 2026
5.0
(1)
10
riders
82.0km
04:04
1,250m
1,250m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
8
riders
51.2km
02:39
460m
460m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
2
riders
15.6km
01:10
210m
210m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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The bridge was probably built in the 17th century and then radically rebuilt and widened in 1795-1796. As with many older bridges, folk tales claimed that the bridge was built by the devil or by the Romans (which an investigation by the National Trust described as "very doubtful"). During the reconstruction, a stone was found with the inscription "W M 1656" scratched on it, suggesting that the bridge is at least that old. Pont Aberglaslyn is located near the downstream end of the Aberglaslyn Pass. Although the location is rocky and the river flows through rapids upstream, it is not far above sea level. (Wikipedia)
7
0
The Lôn Las Menai & Lôn Eifion cycleway follows an old railway trail from Caernarfon to Bryncir. If you decide to ride the whole route, it's 16.6 miles (27 km).
0
0
The old bridge over the river or Afon Glaslyn is a great place to pause and watch the water go by. You can see down into the Aberglaslyn gorge with the rocky fisherman's path cutting its way along the opposite bank. This is a great trail to run from Beddgelert and you can turn it into a loop by running up Cwm Bychan to Lyn Dinas. The bridge is a Grade II-listed, 17th-century stone construction.
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Dinas Dinlle hillfort dates back to the Iron Age and lies above a beautiful beach in North Wales. It may have been built for defences thousands of years ago but it's been used as such far more recently. Atop the hill are Second World War defences as well. Part of the fort has eroded into the sea, giving it a rather spectacular position on the very edge of the land.
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There are over 20 no traffic road cycling routes around Llandwrog, offering a variety of distances and difficulties. You'll find options ranging from easy, family-friendly rides to more challenging routes with significant elevation.
The routes in Llandwrog offer diverse terrain, from flat, coastal paths along Dinas Dinlle Beach to quiet country lanes winding through broadleaf woodlands and areas near historic slate quarries. Some routes also venture into the foothills of Snowdonia, providing challenging climbs and panoramic views.
Yes, Llandwrog offers several easy routes perfect for families or beginners. The Lôn Eifion Cycleway, part of the National Cycle Network Route 8, is a great example, often following dismantled railway lines for a mostly paved and traffic-free experience. You can find easy routes like the Y Banc Café, Penygroes – Local Café and Deli loop from Llanwnda, which is just over 15 km long.
Many routes offer stunning views and pass by notable landmarks. You can enjoy vistas of Caernarfon Castle, the Irish Sea from Dinas Dinlle Beach, and the Menai Strait. Some routes also provide views towards Mount Foel and the peaks of Snowdonia. For specific natural highlights, consider exploring areas near Bwlch Glas Pass or Bwlch Main: Junction of Watkin Path and Rhyd Ddu Path.
While not directly on every route, the region around Llandwrog is rich in natural beauty. Parc Glynllifon, less than a mile from Llandwrog, features waterfalls and a slate amphitheater. Nearby lakes such as Llyn Padarn and Llyn Dinas also contribute to the scenic appeal and can be incorporated into longer rides or visited as detours.
The routes vary significantly in difficulty. While many are gentle and suitable for all skill levels, some segments include significant elevation gain, with climbs exceeding 150 meters. For example, the Drws y Coed Climb – Stone Bridge over Afon Glaslyn loop from Groeslon is considered difficult, featuring over 1200 meters of elevation gain over 80 km.
The area is highly rated by the komoot community, with an average score of 4.7 stars. Reviewers often praise the quiet country lanes, the stunning coastal views, and the diverse landscapes that combine mountainous backdrops with picturesque woodlands and historic sites.
Yes, many of the no traffic road cycling routes around Llandwrog are designed as loops, allowing you to start and finish at the same point. This makes planning your ride and parking more convenient. An example is the Dinas Dinlle Hillfort – Lôn Eifion Cycleway loop from Dinas Dinlle.
Parking availability varies by starting point. Many routes begin in or near villages like Groeslon, Dinas Dinlle, or Llanwnda, where public parking may be available. For routes that utilize the Lôn Eifion Cycleway, look for designated parking areas near access points to the National Cycle Network.
Llandwrog and surrounding areas have some public transport links, primarily bus services connecting to larger towns like Caernarfon. While some routes may be accessible by public transport, it's advisable to check local bus schedules and policies regarding bicycles before planning your trip.
Spring and summer generally offer the most pleasant cycling conditions with milder weather and longer daylight hours, making it ideal for enjoying the coastal and inland scenery. Autumn can also be beautiful with changing foliage, though weather can be more unpredictable. Always check the local forecast before heading out.


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