3.8
(21)
114
riders
17
rides
Mountain biking around Harlech offers a varied landscape characterized by coastal paths, rolling hills, and views towards the Snowdonia mountains. The region features a mix of open terrain and some forested sections, providing diverse riding experiences. Elevation changes are present, ranging from gentle coastal routes to more challenging climbs into the hills. The area's geology includes a mix of rock and soil, influencing trail conditions.
Last updated: April 25, 2026
3.0
(3)
14
riders
46.9km
03:43
910m
910m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
4
riders
62.9km
04:51
1,210m
1,210m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.

Sign up for free
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.
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.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
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.
6
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
Pont Scethin is a stone single arch bridge in a superbly wild and lonely setting in the Rhinog foothills. The bridge used to be on the old London to Harlech packhorse and drover route, and is probably 18th century. Source: https://coflein.gov.uk/en/site/24197/
1
0
If you're riding towards Pont Scethin this is a gradual climb on wide track, the gradient is friendly and big views all around.
0
0
The landscape starts to open up here whether you are climbing or descending - good spot for a breather.
0
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
0
0
There are over 15 mountain bike trails around Harlech, offering a variety of experiences. These include 6 easy routes, 8 moderate routes, and 3 difficult routes, catering to different skill levels.
Yes, Harlech offers several easy and family-friendly mountain bike routes. An excellent option is the Penmorfa Forest Path – View of Porthmadog loop from Porthmadog, which is 12.4 miles (20.0 km) long and takes about 1 hour 21 minutes. Another easy route is the Porthmadog Harbour – Penrhyndeudraeth loop from Porthmadog, covering 17.3 km in about 1 hour.
For advanced riders seeking a challenge, the Pont Scethin Stone Bridge – Llyn Bodlyn loop from Llandanwg is a difficult 29.2 miles (46.9 km) route with significant elevation gain. Another demanding option is the Pen-y-Pass – Telegraph Valley (Maesgwm) loop from Penrhyndeudraeth, which spans 39.1 miles (62.9 km) and features extensive climbs.
Yes, many mountain bike routes around Harlech are designed as loops. Examples include the Harlech Castle – Harlech Castle loop from Harlech, an easy 14.5 km ride, and the more challenging Pont Scethin Stone Bridge – Llyn Bodlyn loop from Llandanwg.
The terrain around Harlech is varied, featuring coastal paths, rolling hills, and some forested sections. You'll encounter a mix of open terrain and woodland, with elevation changes ranging from gentle coastal routes to more challenging climbs into the hills. The area's geology includes a mix of rock and soil, influencing trail conditions.
Spring and autumn generally offer the most pleasant conditions for mountain biking in Harlech, with milder temperatures and often clearer skies. Summer can be good, but trails may be busier. Winter riding is possible, but be prepared for colder, wetter weather and potentially muddy trails, especially in higher elevations.
Yes, several routes offer views of or pass by interesting landmarks. You can find natural monuments like the Rhinog Fawr Summit Cairn and Rhinog Fach Summit. Some trails also provide views of Porthmadog or pass by historic sites like Harlech Castle.
The mountain bike trails in Harlech are highly rated by the komoot community, with an average score of 3.8 stars from over 20 reviews. Riders often praise the diverse landscape, from coastal views to challenging climbs, and the variety of routes suitable for different skill levels.
While specific routes are not designated as 'pub lunch' trails, Harlech and nearby towns like Porthmadog offer various pubs and eateries. Many routes start or pass through these areas, making it convenient to plan a stop for refreshments before or after your ride.
Trail distances vary significantly, from shorter easy loops around 14-20 km (9-12 miles) taking 1-2 hours, to more difficult and extensive routes like the Pen-y-Pass – Telegraph Valley (Maesgwm) loop which is 62.9 km (39.1 miles) and can take over 4 hours.
Harlech's coastal location means weather can be changeable. Expect mild to cool temperatures, with a chance of rain throughout the year. Winds can be a factor, especially on exposed coastal or hill sections. Always check the local forecast before heading out and be prepared for varying conditions.
Yes, the diverse landscapes around Harlech, including coastal areas, forests, and hills, provide opportunities to spot local wildlife. Keep an eye out for various bird species, and if you're lucky, you might encounter larger mammals in the more secluded areas, particularly during quieter times of day.


Browse the best MTB trails in other regions.