4.1
(105)
1,069
riders
30
rides
Mountain biking around Llanllyfni offers a diverse landscape characterized by rolling hills, scenic valleys, and the proximity to the larger peaks of Snowdonia. The area features a mix of forest trails, open paths, and routes alongside tranquil lakes. This region provides varied terrain suitable for different skill levels, from gentle lakeside paths to more challenging mountain ascents.
Last updated: July 21, 2026
4.6
(5)
51
riders
16.5km
01:39
300m
300m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
4.5
(6)
35
riders
19.5km
01:46
500m
500m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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1.0
(1)
13
riders
35.3km
03:15
1,060m
1,060m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.5
(2)
12
riders
42.7km
04:00
1,160m
1,160m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
7
riders
25.4km
02:58
1,030m
1,030m
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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Through the forest run many paths, wide gravel paths but also narrow paths between the trees.
8
0
Llyn Llywelyn is a small shallow mountain lake surrounded by open moorland and forests. It is a natural spot to pause, picnic and soak up the serene atmosphere before continuing your walk.
8
0
Free parking for Beddgelert Forest, half a mile from the A4085. There is a separate parking area for horse trailers. There are also a number of information boards with routes for walking and mountain biking.
8
0
This expansive forest is a treasure trove of walking and cycling trails, photographic opportunities and wildlife in the heart of Eryri National Park (Snowdonia). You can enjoy breathtaking views of Yr Wyddfa (Snowdon), picnic by the secluded lake Llyn Llywelyn and listen to the sound of the trains from the Old Welsh Highland Railway, which run through the forest on their way from Caernarfon to Porthmadog. You can also go horse riding. (National Resources Wales)
8
0
The path along the lake is very nice. Part of it is actually a kind of dam you walk on, with a barrier on both sides so you have to stay on the path. Because the dam is elevated, you have a good view of the lake and the surroundings.
9
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
Llanllyfni offers a selection of over 30 mountain bike trails, catering to various skill levels. These routes explore the region's diverse landscape of rolling hills, scenic valleys, and tranquil lakes.
The trails around Llanllyfni range from easy to difficult. There are 6 easy routes, 14 moderate routes, and 12 difficult routes, providing options for beginners to experienced riders.
For beginners, the Llyn Llywelyn – Lôn Gwyrfai Lakeside Path loop from Rhyd-ddu is an excellent choice. This 16.5 km (10.2 miles) easy route follows picturesque lakeside paths with gentle gradients, taking about 1 hour 35 minutes to complete.
Yes, the region offers several family-friendly options. Routes like the Llyn Llywelyn – Lôn Gwyrfai Lakeside Path loop from Rhyd-ddu are ideal, featuring gentle gradients and scenic views suitable for a leisurely family ride.
Experienced mountain bikers will find challenging routes around Llanllyfni. The View of Llyn Llydaw – Llanberis Path loop from Rhyd-ddu is a difficult 35.3 km (21.9 miles) trail with significant elevation gain, often completed in about 3 hours 14 minutes, leading through mountainous terrain.
Trail lengths vary significantly. You can find shorter, easy loops like the 16.5 km (10.2 miles) Llyn Llywelyn – Lôn Gwyrfai Lakeside Path loop from Rhyd-ddu, up to longer, more challenging routes such as the 41.3 km (25.7 miles) Telegraph Valley (Maesgwm) – Snowdon Ranger Hostel loop from Groeslon.
Many mountain bike trails in Llanllyfni are designed as loops, offering convenient starting and ending points. Examples include the Ty'n Yr Aelgerth Cottage – Telegraph Valley (Maesgwm) loop from Betws Garmon and the Llyn Llywelyn – Beddgelert Stone Bridge loop from Beddgelert.
The trails offer stunning views of the region's natural beauty. You can encounter impressive summits like Snowdon Summit (Yr Wyddfa) and Glyder Fawr summit, as well as picturesque waterfalls such as Plas Cwm Llan Ruins and Waterfalls and Rhaeadr y Chwarel (Quarry Waterfall).
The area is highly rated by the komoot community, with an average score of 4.2 stars from over 100 reviews. Reviewers often praise the diverse terrain, from gentle lakeside paths to challenging mountain ascents, and the scenic beauty of the valleys and lakes.
The spring and autumn months generally offer the most pleasant conditions for mountain biking in Llanllyfni, with milder temperatures and beautiful scenery. Summer can be popular but also busier, while winter rides are possible but require appropriate gear for potentially wet and colder conditions.
Many trails in the Llanllyfni area are dog-friendly, but it's always best to check specific route details and local signage. Ensure your dog is well-behaved, kept under control, and that you clean up after them to respect the local environment and other trail users.


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