4.5
(107)
506
riders
10
rides
No traffic gravel bike trails around Llyn Cowlyd are set within the Carneddau mountain range in Snowdonia National Park, offering a diverse and challenging landscape for gravel biking. The region features steep hillsides, deep lakes like Llyn Cowlyd itself, and a mix of unpaved and paved sections. Cyclists encounter significant elevation changes, with routes often described as "super lumpy" and including demanding climbs. This area provides a rugged, open mountain environment with panoramic views of surrounding peaks and valleys.
Last updated: May 17, 2026
3
riders
29.5km
02:30
900m
900m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3
riders
20.7km
01:39
430m
430m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
6
riders
11.4km
01:05
230m
230m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
11
riders
64.8km
04:29
1,130m
1,130m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
67
riders
21.7km
02:00
460m
460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Llyn Cowlyd
a short cut to the top following the yellow trail, nice and steep with slab rock and roots on the descent
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Nothing especially tricky or difficult, as long as you have vaguely "gravel" tyres you'll be fine. Stunning views along the way, I prefer the heading west views but it is pretty both ways.
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This is a serene lake located in the Conwy Valley surrounded by forested hills and the rugged landscape of Snowdonia. There's a cafe and fishery further south along the lake which is a lovely place to stop and refuel.
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Llyn Ogwen is a ribbon lake in north-west Wales. It lies alongside the A5 road between two mountain ranges of Snowdonia, the Carneddau and the Glyderau.
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The Llyn Cowlyd area offers a selection of 10 dedicated no-traffic gravel bike trails. These routes provide a true escape into the stunning Snowdonia landscape, away from vehicular traffic.
Gravel biking around Llyn Cowlyd is generally considered challenging, with 7 out of 10 routes rated as difficult and 3 as moderate. The terrain is often described as 'super lumpy' with substantial climbing, including notorious ascents. Riders should expect significant elevation changes and diverse surfaces, with many routes featuring extensive unpaved sections.
While many routes in Llyn Cowlyd are challenging, some moderate options might be suitable for families with good fitness levels and experience on varied terrain. For example, the Llyn Sarnau Fire Roads – Llyn Parc loop from Llanrhychwyn is a moderate 11.4 km route with less elevation gain, offering a taste of the region's beauty without the most extreme climbs.
The trails around Llyn Cowlyd offer breathtaking views of the deepest lake in North Wales, surrounded by the dramatic Carneddau mountain range. You'll encounter steep hillsides, crystal-clear waters, and panoramic vistas extending to iconic peaks like Tryfan. The area is a Site of Special Scientific Interest, featuring diverse flora and fauna, ancient woodlands, and open meadows. You might also pass other scenic lakes like Llyn Crafnant and Llyn Geirionydd.
The komoot community highly rates the gravel biking experience around Llyn Cowlyd, with an average score of 4.4 stars. Reviewers often praise the profound sense of solitude, the challenging and rewarding climbs, and the stunning, uninterrupted views of the Snowdonia National Park. The lack of traffic is consistently highlighted as a major draw, allowing for an immersive outdoor adventure.
Yes, many of the no-traffic gravel routes around Llyn Cowlyd are circular, allowing you to start and finish at the same point. An example is the Llyn Parc – Llyn Geirionydd loop from Trefriw, which offers a moderate 20.7 km ride through varied terrain, taking you past multiple beautiful lakes.
Parking is available in nearby villages and towns such as Trefriw, Llanrhychwyn, or Llanrwst, which serve as common starting points for many routes. For instance, the Llyn Crafnant – Llyn Ogwen and Ogwen Obelisk loop starts from Trefriw, where parking facilities can be found. Always check local signage for parking restrictions and fees.
While the Llyn Cowlyd area is generally dog-friendly for outdoor activities, it's important to remember that much of it is within a Site of Special Scientific Interest and active farmland. Dogs should be kept under close control, preferably on a lead, to protect wildlife and livestock. Always check specific route details and local guidelines before heading out with your dog.
While the trails themselves are remote and traffic-free, nearby towns like Trefriw, Capel Curig, and Betws-y-Coed offer various cafes, pubs, and accommodation options. It's advisable to carry sufficient food and water for your ride, as amenities are not directly on the trails. Plan your route to pass through or near these towns for a well-deserved break.
The best time to gravel bike around Llyn Cowlyd is typically from spring to autumn (April to October) when the weather is milder and daylight hours are longer. During these months, you'll experience the full beauty of the landscape. Winter conditions can be challenging, with potential for ice, snow, and shorter days, requiring appropriate gear and experience.
Yes, experienced riders seeking a significant challenge will find several demanding routes. The Llyn Ogwen – Snowdonia Slate Trail Byway loop from Gogledd Llanrwst is a difficult 64.8 km route with over 1100 meters of elevation gain, offering a truly epic day out. Another challenging option is the Bullhead Descent – Llyn Parc loop from Llanrwst, a difficult 22.5 km ride with steep descents and climbs.


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