4.7
(74)
1,116
riders
11
rides
No traffic touring cycling routes around Llyn Nantlle Uchaf traverse a landscape shaped by ancient glaciers, featuring a natural lake, dramatic valleys, and impressive mountains. The region offers a mix of terrains, from wide, tarmacked paths utilizing old railway lines to routes with varied elevation changes. Remnants of the slate quarrying industry are visible across the area, adding historical context to the scenic rides. The network provides a solid infrastructure for touring, connecting to local villages and attractions.
Last updated: July 12, 2026
2
riders
13.1km
00:52
190m
190m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.9
(24)
110
riders
40.1km
02:24
250m
250m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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11
riders
17.6km
01:23
360m
360m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
92
riders
17.9km
01:47
300m
300m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
19.6km
01:58
370m
370m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Llyn Nantlle Uchaf
Slightly above Llyn Llewelyn you have a nice view of Snowdon and the surrounding peaks. Enjoy this beautiful view.
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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
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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
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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
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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
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Lovely lunch spot with picnic benches at the waterside
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There are over a dozen dedicated no-traffic touring cycling routes around Llyn Nantlle Uchaf, catering to various abilities. You'll find 4 easy routes and 9 moderate routes, ensuring options for both relaxed rides and more engaging tours.
Yes, the region is excellent for family cycling. The Lôn Eifion Cycleway is a prime example, offering a wide, tarmacked, and traffic-free path that's ideal for all ages. It provides a relaxed ride through scenic landscapes. Many of the routes are part of the broader Lonydd Glas network, which utilizes old railway lines for easy, accessible cycling.
The no-traffic touring routes around Llyn Nantlle Uchaf offer a mix of terrains. Many routes feature mostly paved surfaces, especially those utilizing old railway lines like parts of the Lôn Eifion Cycleway. While the focus is on no-traffic, some sections might incorporate well-maintained unpaved paths. Cyclists should also be aware of potential encounters with freely roaming sheep and occasional cattle grids on roads within the Nantlle Valley.
Spring, summer, and early autumn generally offer the most pleasant conditions for touring cycling around Llyn Nantlle Uchaf. During these seasons, you'll experience milder weather, longer daylight hours, and the landscape is at its most vibrant. While winter cycling is possible, be prepared for colder temperatures, shorter days, and potentially wet or icy conditions.
The routes offer stunning views and access to several notable landmarks. You'll frequently encounter breathtaking vistas of Llyn Nantlle Uchaf itself, often with Snowdon reflected in its waters. Many routes connect to local villages and attractions. For example, the Caernarfon Castle loop from Groeslon will bring you close to the historic Caernarfon Castle. The Nantlle Valley itself is rich in natural beauty and industrial heritage, with remnants of slate quarrying visible.
Yes, several circular routes are available, allowing you to start and end at the same point. An example is the Y Banc Café, Penygroes – Lôn Eifion Cycleway loop from Llanwnda, which offers a moderate 13 km ride. These loops are great for exploring the region without needing to retrace your steps.
The majority of the no-traffic touring cycling routes around Llyn Nantlle Uchaf are classified as moderate, with 9 out of 13 routes falling into this category. There are also 4 easy routes, making the area accessible for a wide range of cyclists. There are no routes classified as difficult, ensuring a generally manageable experience.
The area is highly rated by the komoot community, with an average score of 4.7 stars from 63 ratings. Reviewers often praise the stunning natural beauty, the peaceful ambiance of the traffic-free paths, and the incredible views of Snowdon and the surrounding mountains. The well-maintained surfaces of routes like the Lôn Eifion Cycleway are also frequently highlighted.
Yes, while many routes are shorter, there are options for longer rides. For instance, the Caernarfon Castle – View of Caernarfon Castle loop from Groeslon offers a substantial 40 km ride. These longer routes allow for more extensive exploration of the valley and its connections to nearby towns and attractions.
Parking is generally available in or near the villages and towns that serve as starting points for these routes. For routes that utilize the Lôn Eifion Cycleway or the broader Lonydd Glas network, look for designated parking areas in towns like Caernarfon or near trailheads. Specific parking information is often detailed on individual route pages on komoot.
The Llyn Nantlle Uchaf area has some public transport links, primarily bus services connecting the villages. While direct access to every trailhead might vary, many routes are designed to connect to local villages, which often have bus stops. Planning your route in conjunction with local bus timetables can facilitate public transport access.
While specific waterfalls are not explicitly highlighted on every route, the Nantlle Valley is known for its dramatic landscapes, which include cascading waterfalls, especially after rainfall. Exploring the valley's natural features along routes like the Lôn Gwyrfai Lakeside Path – Llyn y Gadair loop from Rhyd-ddu may offer glimpses of these natural water features within the mountainous terrain.


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