4.3
(116)
1,084
riders
43
rides
Mountain biking around Llanddeiniolen offers routes through the varied landscape of Eryri (Snowdonia) National Park. The region is characterized by mountainous terrain, deep valleys, and significant lakes like Llyn Padarn. Trails often feature considerable elevation changes, providing challenging climbs and descents. The area combines natural features with historical elements, such as the Llanberis Lake Railway.
Last updated: October 11, 2026
4.7
(38)
397
riders
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.6
(7)
53
riders
29.5km
02:31
680m
680m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

4.6
(7)
42
riders
27.1km
02:29
720m
720m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.3
(3)
22
riders
44.8km
04:07
1,030m
1,030m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
1.0
(1)
13
riders
30.8km
03:06
1,080m
1,080m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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A very good path - good enough for cycling - from Bwlch Maesgwm to the road above Llanberis. It is a beautiful valley with a feeling a remoteness.
0
0
At the start of the 20th century, this was the second largest slate quarry in Wales (and thus, the world), covering over 700 acres, consisting of two main quarry sections with 20 galleries in each.
0
0
Through the forest run many paths, wide gravel paths but also narrow paths between the trees.
8
0
Slightly above Llyn Llewelyn you have a nice view of Snowdon and the surrounding peaks. Enjoy this beautiful view.
8
0
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
I think the start and the end is probably the hardest but overall pretty easy path you can’t get lost
0
0
This is an example of many miles of the trail in Beddgelert Forest. Quite wide double tracks, compact gravel surfaces, enclosed by mainly pine trees. If it is a windy day and needing an area to ride in which is more sheltered from the wind, then Beddgelert Forest does offer just that
1
0
There are over 45 mountain bike trails around Llanddeiniolen listed on komoot, offering a wide range of options for different skill levels. This includes 12 easy, 24 moderate, and 10 difficult routes.
Yes, Llanddeiniolen offers 12 easy mountain bike trails perfect for beginners or those looking for a more relaxed ride. These routes typically feature less challenging terrain and elevation changes, allowing you to enjoy the scenic landscape at a comfortable pace.
Experienced mountain bikers will find 10 difficult routes around Llanddeiniolen, many of which involve significant elevation changes and technical sections within Eryri (Snowdonia) National Park. A prime example is the challenging Yr Wyddfa (Snowdon) circular, via the Llanberis and Ranger paths, which includes a substantial ascent of Snowdon.
While the region is known for its mountainous terrain, there are moderate routes that can be enjoyed by families with some biking experience. Look for trails that stick to lower elevations or less technical paths. The area around Llyn Padarn, for instance, offers more accessible sections.
Yes, many of the mountain bike trails around Llanddeiniolen are circular, allowing you to start and finish at the same point. A popular moderate option is the Telegraph Valley (Maesgwm) – Snowdon Ranger Hostel loop from Cwm-y-glo, which offers a varied ride through the valley.
The best time for mountain biking in Llanddeiniolen is typically from late spring to early autumn (May to October). During these months, the weather is generally milder, with longer daylight hours and less chance of severe rain or snow, making the mountainous trails more accessible and enjoyable.
The trails offer stunning views of Eryri (Snowdonia) National Park, including deep valleys, significant lakes like Llyn Padarn, and historical elements. You might pass by the Llanberis Lake Railway or catch glimpses of prominent peaks. Some routes even lead towards summits like Snowdon Summit (Yr Wyddfa) or Glyder Fach summit.
The mountain biking trails around Llanddeiniolen are highly rated by the komoot community, with an average score of 4.4 stars from over 100 reviews. Riders often praise the diverse mountainous landscapes, the challenging climbs and descents, and the scenic lake views, particularly around Llyn Padarn.
Mountain biking in Llanddeiniolen during winter can be challenging due to colder temperatures, shorter daylight hours, and the potential for snow and ice, especially at higher elevations. Lower-lying trails might be rideable, but always check weather forecasts and trail conditions before heading out, and be prepared for rapidly changing mountain weather.
While specific pub-linked trails aren't highlighted, many routes start or pass through villages like Llanberis or Cwm-y-glo, where you can find local pubs and cafes to refuel after your ride. For example, the Llanberis Lake Railway – View of Llyn Padarn loop from Llanberis starts and ends in Llanberis, offering convenient access to amenities.
Parking is generally available at common starting points for trails, such as in Llanberis or Cwm-y-glo. These villages serve as popular access points for the surrounding mountain bike routes, including those leading into Eryri (Snowdonia) National Park. Always check local signage for parking regulations and fees.


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