4.7
(33)
1,626
riders
43
rides
Road cycling around Llyn Cowlyd is set within the dramatic landscapes of Snowdonia National Park, North Wales. The area features Llyn Cowlyd, the deepest lake in North Wales, situated at 355 meters (1,164 feet) above sea level, flanked by steep hills of the Carneddau range. The terrain is characterized by wild mountain scenery, rugged ridgelines, and challenging ascents, including the notable "The Cowlyd" climb. Historic dams and expansive views of the Welsh countryside are prominent features along these routes.
Last updated: July 8, 2026
3.0
(1)
67
riders
27.3km
01:15
280m
280m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
20
riders
81.3km
04:07
1,280m
1,290m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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45
riders
63.5km
02:52
710m
710m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
20
riders
23.3km
01:04
260m
260m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
17
riders
37.2km
01:49
560m
570m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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The bridge was probably built in the 17th century and then radically rebuilt and widened in 1795-1796. As with many older bridges, folk tales claimed that the bridge was built by the devil or by the Romans (which an investigation by the National Trust described as "very doubtful"). During the reconstruction, a stone was found with the inscription "W M 1656" scratched on it, suggesting that the bridge is at least that old. Pont Aberglaslyn is located near the downstream end of the Aberglaslyn Pass. Although the location is rocky and the river flows through rapids upstream, it is not far above sea level. (Wikipedia)
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The visitor centre is located on the A5, approximately 5 miles south of Bethesda and approximately 4 miles west of Capel Curig, on the western side of Llyn Ogwen. There are a number of facilities including toilets, disabled toilets, an information room, public wifi and a small kiosk selling hot and cold snacks. From the visitor centre you can start a range of walks and climbs in the area. The most popular is the walk to Wales' first ever national nature reserve, the beautiful Cwm Idwal, a glacial lake with a mountainous backdrop. (Cwm Idwal National Nature Reserve)
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Cyfyng Falls (on the Afon Llugwy) are relatively unknown, although they are situated along the main road between Betwys y Coed and Capel Curig. The falls are directly below the road and can be seen from the Pont Cyfyng bridge. After the bridge turn right onto a lane/footpath which branches off to the right just after a gate. Follow this to the river for a better view. It is not the height that makes this waterfall so attractive, but the power of the water and the landscape.
12
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Pont Cyfyng is a bridge over the River Llugwy at Capel Curig. The river flows very fast here, with rapids and waterfalls. Beautiful to see.
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If you want to park here, you have to reserve a parking space in advance for 20 GBP. We didn't manage to do it, as everything was fully booked. You can then park in Llanberies and take the Sherpa Bus S1 or S2 to Pen y Pass. The bus runs every half hour. From Pen y Pass, you can then choose the Miner's Track or Pyg Track. Have fun!
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Right opposite the layby are the two main blocks - a good description and link to the topo is at https://www.climber.co.uk/outdoor/bouldering/around-the-bloc-the-cromlech-boulders-llanberis/ There are more higher up on the hill and you will find boulderars here at most times of the weather permits.
3
0
Road cycling around Llyn Cowlyd offers a diverse terrain within Snowdonia National Park. You'll encounter wild mountain scenery, rugged ridgelines, and challenging ascents, including the notable "The Cowlyd" climb. While some routes feature mostly paved surfaces, especially for easier rides, others navigate through mountain passes demanding higher fitness levels. The area is known for its dramatic natural beauty, with deep glacial lakes and surrounding peaks.
Yes, Llyn Cowlyd offers options for various ability levels. For an easier experience, consider routes like the Tryfan and Dyffryn Ogwen – Llyn Ogwen loop from Capel Curig. This 17.0-mile (27.3 km) route is rated easy and provides views of the iconic Tryfan mountain and Llyn Ogwen.
For experienced road cyclists seeking a challenge, Llyn Cowlyd has several demanding routes. The Llyn Ogwen – Llyn Dinas loop from Capel Curig is a difficult 50.7-mile (81.5 km) path that navigates through mountain passes and past scenic lakes, requiring high fitness levels. Another option is the Llyn Dinas – Aberglaslyn Bridge loop from Pont Cyfyng, a 39.4-mile (63.4 km) trail with varied terrain including the Aberglaslyn Pass.
While the immediate area around Llyn Cowlyd can be rugged, routes starting from nearby Capel Curig offer varied terrain suitable for different fitness levels, including options with mostly paved surfaces ideal for road cycling. For a shorter, easier ride, the Moel Siabod Café loop from Pont Cyfyng is an easy 22.9-mile (22.9 km) route that could be suitable for families with some cycling experience.
The changing seasons bring different hues and atmospheres to the Llyn Cowlyd area, enhancing the cycling experience. Spring and autumn often offer pleasant temperatures and beautiful scenery. Summer provides longer daylight hours, though it can be busier. Be aware that the lake's waters often appear dark due to weather conditions, so checking the forecast before you go is always recommended.
Road cycling routes around Llyn Cowlyd offer panoramic views of the lake and the dramatic Snowdonia landscapes. You'll encounter deep glacial lakes, rugged mountains, and verdant valleys. Notable features include the iconic Tryfan mountain, Llyn Ogwen, and historic dams. The area is a designated Site of Special Scientific Interest, recognized for its unique flora and fauna, and offers expansive views of the Welsh countryside.
Yes, many of the road cycling routes around Llyn Cowlyd are designed as loops, allowing you to start and finish in the same location. Examples include the Tryfan and Dyffryn Ogwen – Llyn Ogwen loop from Capel Curig and the Roadbike loop from Capel Curig, which is a moderate 36.0-mile (36.0 km) route.
The Llyn Cowlyd area is highly rated by the komoot community, with an average score of 4.7 stars from over 20 reviews. Cyclists often praise the wild mountain scenery, the deep reservoirs, and the rugged ridgelines. The variety of routes, from easier loops to exceptionally difficult climbs, is also a significant draw, along with the dramatic landscapes of Snowdonia National Park.
Yes, nearby towns like Capel Curig and Betws-y-Coed offer amenities for visitors. You can find local pubs that provide meals, often made from locally sourced ingredients, and various accommodation options. The Moel Siabod Café loop from Pont Cyfyng even suggests a route that passes by a café, indicating that such facilities are accessible.
There are over 40 road cycling routes available in the Llyn Cowlyd region, catering to a wide range of abilities. This includes 7 easy routes, 26 moderate routes, and 10 difficult routes, ensuring there's something for every road cyclist.
While specific details on bike carriage for public transport are not provided, nearby towns like Capel Curig are common starting points for routes. It's advisable to check local bus services for routes within Snowdonia National Park, as some may offer limited space for bikes or have specific regulations. Planning your journey in advance is recommended.
Parking is generally available in and around the main starting points for many routes, such as Capel Curig and Pont Cyfyng. These villages serve as hubs for outdoor activities in the area. Always look for designated parking areas and be mindful of local regulations, especially within Snowdonia National Park.


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