4.7
(23)
2,125
riders
83
rides
Road cycling routes around Morfa Harlech National Nature Reserve traverse a diverse landscape, from coastal stretches along Cardigan Bay to the foothills of Eryri (Snowdonia) National Park. The terrain features a mix of mostly paved surfaces, offering smoother rides, alongside challenging ascents into mountainous areas. Cyclists can expect views of dynamic sand dunes, wetlands, and historical landmarks like Harlech Castle, with routes varying in elevation gain. This region provides varied road cycling experiences, from moderate coastal loops to demanding climbs…
Last updated: July 8, 2026
60
riders
45.7km
02:44
1,060m
1,060m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
9
riders
22.7km
01:01
210m
210m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

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5
riders
37.9km
01:54
440m
440m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
3
riders
118km
05:34
1,340m
1,340m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
52
riders
92.8km
04:11
930m
930m
Hard road ride. Very good fitness required. 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)
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Porthmadog came about after William Madocks (a guess this is where the name of the town derives from) built a sea wall, the Cob to reclaim land from the sea for farming use. The diversion of the river caused it to scour out a new natural harbour deep enough for small ships and the first public wharves appeared in 1825. Quarry companies followed, with wharves along the shore mainly for the transport of slate and due to this the town grew in population and importance.
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There are plenty of deep steps at the start and us oldies decided to avoid them on the way back.
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Car park gets full up top so park sensibly park close to next car gives more space for others. Don’t park in front of gate as this is used by farmer Go Below and mountain/cave rescue. More parking available at bottom of hill.
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Use the cycle track next to the con, not the road as cars tend to speed.
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It's a good climb, it's hard but it's beautiful
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The terrain around Morfa Harlech offers a diverse experience. You'll find mostly paved surfaces, providing smoother rides, especially on coastal stretches. However, routes venturing into the foothills of Eryri (Snowdonia) National Park can include challenging ascents and descents, with some sections potentially in poor condition. Expect a mix of coastal roads, dynamic sand dunes, and dramatic mountain scenery.
Yes, while some routes are challenging, there are options for less experienced cyclists. The area features moderate bike rides and loops that can be completed in under two hours with around 500 ft of elevation gain. These routes often stick to mostly paved surfaces, making them more accessible for families or those seeking an easier ride.
Cyclists can enjoy views of several significant landmarks and natural features. The majestic Harlech Castle, a World Heritage site, stands prominently overlooking the coast. Routes also offer glimpses of expansive sand dunes, wetlands, and picturesque lakes like Llyn Cwm Bychan. Historical sites such as Criccieth Castle and David Lloyd George's Grave are also visible on certain routes, like the Criccieth Castle – David Lloyd George's Grave loop from Minffordd.
The routes vary significantly in difficulty. You'll find 22 easy routes and 50 moderate routes, perfect for a relaxed ride or those with good fitness. For experienced cyclists seeking a challenge, there are 13 difficult routes, such as the Cwmorthin Falls – Stwlan Dam loop from Minffordd, which features significant elevation gain through mountainous terrain.
Yes, many of the road cycling routes in the Morfa Harlech area are designed as loops, offering convenient circular rides. Examples include the Coed Tŷ-coch Stream loop from Talsarnau, which takes you through varied landscapes, and the Harlech Castle loop from Talsarnau mentioned in regional research.
The region is rich in natural beauty. You'll cycle past the impressive coastal landscape of Morfa Harlech, known for its dynamic sand dunes and two expansive beaches. Routes also traverse diverse habitats including wetlands, grasslands, and small forested areas. Keep an eye out for wildflowers in spring and early summer, and various bird species, especially in winter on the mudflats.
The area is highly rated by the komoot community, with an average score of 4.8 stars from over 16 reviews. Cyclists often praise the varied terrain, from coastal roads with sweeping seascapes to challenging climbs offering dramatic mountain views. The blend of natural beauty and historical landmarks like Harlech Castle also contributes to a highly enjoyable experience.
Absolutely. Many routes, particularly those ascending into Snowdonia National Park, offer spectacular, sweeping seascapes and dramatic mountain scenery. A notable hilly route originating from Min Y Don campsite in Harlech is described as having views that rival any in Britain on a dry day, including rocky outcrops, waterfalls, and Llyn Cwm Bychan.
While road cycling is possible year-round, spring and early summer are particularly rewarding. During these months, the dune grasslands and slacks burst with color from numerous wildflowers, and breeding birds are present. Dry days are ideal for enjoying the panoramic views, especially on more challenging routes with descents.
Yes, the area offers several longer routes for those seeking extended rides. For example, the Caernarfon Castle – The Cob Causeway loop from Talsarnau covers over 90 km, and the Penmachno Climb – Ffynnon Eidda from Ysbyty Ifan loop from Talsarnau is over 74 km, both featuring significant elevation gains suitable for advanced cyclists.
Given the varied terrain and coastal exposure, it's wise to pack layers of clothing suitable for changing weather conditions. Waterproofs are advisable. For longer routes, especially those with unpaved sections or poor asphalt, consider a more robust bike or be prepared for occasional pushing. Always carry water, snacks, and basic repair tools.
While specific public transport links directly to every route start point are not detailed, Harlech itself is accessible by public transport. Cyclists can plan routes that start or pass through towns with train or bus connections, such as Minffordd or Talsarnau, which are mentioned as starting points for several komoot tours.
Parking is generally available in and around the main towns and attractions in the area, such as Harlech. When planning your ride, look for designated parking areas near your chosen route's starting point. Campsites like Min Y Don in Harlech also serve as potential starting points with parking facilities.


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