4.3
(7)
40
riders
6
rides
Mountain biking around Llanfair-Mathafarn-Eithaf offers diverse terrain across the Isle of Anglesey. The region features coastal paths, forest trails, and routes around inland reservoirs. Elevation changes are generally moderate, making it accessible for various skill levels. The landscape is characterized by a mix of natural beauty and rural settings, providing varied backdrops for mountain biking.
Last updated: May 11, 2026
5.0
(4)
22
riders
43.0km
02:37
140m
140m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
8
riders
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.

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3
riders
54.9km
03:14
560m
560m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
3.0
(1)
3
riders
18.6km
01:11
250m
250m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.0
(1)
2
riders
26.6km
01:44
220m
220m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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Running Trails around Llanfair-Mathafarn-Eithaf
We visited for the Parkrun, which was cancelled whilst a walkway is fixed (some more weeks, I would expect). You can still access the lake along the disused railway line for part of the way - but not a good surface for running. Then there is a path around the lake with views across the lake and stretches through the woods, lovely, if rather muddy in places following wet weather. In total about 9 km around. Hope to do this again in the Spring with the promise of wild daffodils and perhaps a red squirrel.
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Quiet paths easy cycling crosses deserted railway line still present, which there trying to reopen
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Cefni Forest on Anglesey surrounds Llyn Cefni reservoir near Llangefni. It offers peaceful woodland trails for walking and cycling, linking to the Lon Las Cefni route. The forest is a sanctuary for red squirrels and diverse birdlife, making it a perfect spot for quiet nature exploration and wildlife watching.
1
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nice little cafe some nice cakes and coffee summer opening only
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Very flat, easy surface, great little loop
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There are 7 mountain bike trails available in the Llanfair-Mathafarn-Eithaf area, offering a variety of experiences for different skill levels.
Yes, the region offers 5 easy mountain bike trails. A great option for beginners or families is the Cefni Forest – Llyn Cefni Reservoir and Dam loop from Isle of Anglesey, which is 7.3 miles long and navigates through Cefni Forest and alongside the reservoir.
The trails around Llanfair-Mathafarn-Eithaf are generally moderate to easy. There are no trails currently classified as difficult, making the area more accessible for a wider range of riders.
You can expect diverse terrain, including coastal paths, forest trails, and routes around inland reservoirs. The landscape features a mix of natural beauty and rural settings, with generally moderate elevation changes.
Yes, many of the routes are circular. For example, the Llanddwyn Beach – Newborough Forest Trail loop from Anglesey is a popular circular route combining coastal and forest sections. Another is the Llynnon Mill – Cemlyn Bay Nature Reserve loop from Llannerch-y-Medd.
Many routes offer scenic views, especially those along the coast or around reservoirs. The Llanddwyn Beach – Newborough Forest Trail loop from Anglesey provides stunning coastal scenery. For inland views, routes around Llyn Cefni Reservoir, such as the Afon Cefni River – Llyn Cefni Reservoir and Dam loop from Benllech, offer picturesque landscapes.
While mountain biking, you can encounter various points of interest. Notable attractions nearby include the Mynydd Bodafon Summit for panoramic views, the historical Parys Mountain Copper Mines, and the scenic Red Wharf Bay.
The area is highly rated by the komoot community, with an average score of 4.25 stars from over 7 reviews. Riders often praise the diverse terrain, from coastal paths to forest trails, and the accessibility for various skill levels.
For a potentially quieter experience, consider exploring routes that venture slightly inland or away from the most popular coastal spots. The Lligwy Beach Café & Shop – Lligwy Beach loop from Brynrefail offers a pleasant ride through varied landscapes that might be less frequented than the major trails.
While mountain biking is enjoyable year-round, spring and autumn generally offer the most pleasant conditions with milder temperatures and beautiful scenery. Summer can be great for coastal rides, but trails might be busier. Winter can be wet, so be prepared for muddy conditions.
Many trails in the region are dog-friendly, especially those through forests and along less populated paths. However, it's always best to keep dogs under control, particularly near livestock or in nature reserves. Check local signage for specific restrictions.
Parking availability varies by trailhead. Many popular starting points for routes, especially near villages or attractions, will have designated parking areas. It's advisable to check the specific route details on komoot for parking information before you set out.


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