4.1
(12)
57
riders
14
rides
Mountain biking around Morfa Harlech National Nature Reserve offers a diverse landscape for riders. The region is characterized by its coastal position, featuring extensive sand dunes, marshlands, and estuary views. Nearby areas include forested paths and rolling hills, providing varied terrain for different skill levels. This mix of coastal and inland features creates a dynamic environment for mountain bike trails.
Last updated: May 11, 2026
4
riders
62.9km
04:51
1,210m
1,210m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
4.0
(2)
5
riders
20.0km
01:21
290m
290m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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4.0
(1)
3
riders
17.2km
00:58
110m
110m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
3.0
(1)
2
riders
14.5km
01:04
290m
290m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
2
riders
23.3km
01:43
460m
460m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
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Stop, look out and listen are the recommendations (to be read on the sign) that you must follow when crossing the track here. It is an unguarded crossing on this railway for tourist trains.
9
0
Insanely steep at 37.45% early on but eases off quickly.
0
0
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.
1
0
Tis is the crossing of the Ffestiniog Welsh Highland Railway at Rhyd Ddu. once through the crossing the surface becomes compact gravel and climbing. It is rideable but takes effort
1
0
Excellent sight looking across Llyn Peris which is 503mtrs above sea level. Dinorwig hydroelectric power station is straight across the lake, this generates 1728MW of power. There are 16 kilometres of deep tunnels in Elidir Mountain. This was opened in 1984
0
0
If you want to park here, you have to reserve a parking space in advance for 20 GBP. We didn't manage to do it, as everything was fully booked. You can then park in Llanberies and take the Sherpa Bus S1 or S2 to Pen y Pass. The bus runs every half hour. From Pen y Pass, you can then choose the Miner's Track or Pyg Track. Have fun!
2
0
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
0
There are 14 mountain bike trails available in the Morfa Harlech National Nature Reserve area. These routes offer a mix of coastal paths, sand dunes, and forested areas, catering to various skill levels.
Yes, there are 5 easy mountain bike trails around Morfa Harlech National Nature Reserve. A great option for families or beginners is the Harlech Castle – Harlech Castle loop from Harlech, which is 14.5 km long and offers scenic views.
For experienced riders seeking a challenge, there are 2 difficult mountain bike trails. The most demanding is the Pen-y-Pass – Telegraph Valley (Maesgwm) loop from Penrhyndeudraeth, a 63 km route with significant elevation changes through mountain terrain.
Many trails in the area provide scenic views. The Penmorfa Forest Path – View of Porthmadog loop from Porthmadog offers beautiful vistas towards Porthmadog, combining forested paths with open views.
The spring and autumn months generally offer the most pleasant conditions for mountain biking in Morfa Harlech. The weather is typically milder, and the trails are less crowded than during peak summer. Always check local weather forecasts before heading out, especially for coastal areas where conditions can change quickly.
Yes, many of the mountain bike trails in the area are circular. For example, the Porthmadog Harbour – Penrhyndeudraeth loop from Porthmadog is a 17 km circular trail that takes you through coastal paths and offers estuary views.
The terrain around Morfa Harlech National Nature Reserve is quite diverse. You can expect a mix of coastal paths, extensive sand dunes, marshlands, and estuary views. Inland, some routes feature forested paths and rolling hills, providing varied surfaces from sandy tracks to more solid forest trails.
The mountain bike routes in Morfa Harlech National Nature Reserve are highly rated by the komoot community, with an average score of 4.1 stars from over 12 reviews. Riders often praise the diverse landscape, from coastal scenery to forested sections, and the variety of options for different skill levels.
Yes, there are 7 moderate mountain bike trails. A good example is the Cefnfilltir Standing Stone – Afon Artro Riverside Path loop from Harlech, a 23.3 km route that offers a balanced challenge with varied terrain.
Trail durations vary significantly based on distance and difficulty. Easy routes like the Porthmadog Harbour – Penrhyndeudraeth loop from Porthmadog can be completed in under an hour, while more difficult trails such as the Pen-y-Pass – Telegraph Valley (Maesgwm) loop from Penrhyndeudraeth can take nearly 5 hours.
Given the coastal and varied terrain, it's advisable to wear layers that can be adjusted for changing weather conditions. Waterproof and windproof outer layers are recommended, especially near the coast. Comfortable, moisture-wicking base layers and appropriate cycling shorts are also essential. Always wear a helmet for safety.


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