4.8
(32)
1,580
riders
24
rides
Road cycling around Llyn Eigiau offers routes through a glaciated valley on the edge of the Carneddau mountain range in Snowdonia. The terrain features rugged landscapes, open spaces, and views of surrounding mountains like Pen Llithrig y Wrach. Cyclists can explore routes that pass historical features such as the Llyn Eigiau dam and old slate quarries, providing varied scenery. The area provides a range of road cycling routes suitable for different fitness levels, primarily on paved surfaces.
Last updated: June 24, 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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17
riders
37.2km
01:49
560m
570m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
19
riders
27.0km
01:20
350m
350m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
15
riders
16.2km
00:42
130m
130m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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easy to park here or innlong stay. can travese the castle walls here or visit the castle
1
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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)
7
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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)
11
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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!
2
0
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
Currently parking is pre-booking only! All others are directed to the P+R in the village and need to get up by bus or walk.
3
0
The Llyn Eigiau area is characterized by a dramatic glaciated valley, offering stunning views of surrounding mountains like Pen Llithrig y Wrach. While many routes are primarily on paved surfaces, you'll experience rugged landscapes and open spaces typical of Snowdonia National Park. Some routes may include unpaved segments, so it's good to check route details.
Yes, Llyn Eigiau offers several easier road cycling routes. For instance, the Tu Hwnt Ir Bont Tearoom – Ty Hwnt i’r Bont Tearooms loop from River Conwy is an easy 16.6 km ride with minimal elevation. Overall, there are 7 easy routes available, providing options for those seeking a more relaxed ride.
Absolutely. For experienced cyclists seeking a challenge, routes like the Llyn Ogwen – Llyn Dinas loop from Capel Curig offer significant elevation gain over its 81.5 km distance. The region features demanding climbs and mountainous terrain, with 5 difficult routes available to test your fitness.
You'll encounter a variety of natural beauty, including the expansive Llyn Eigiau lake itself, which is nestled in a glaciated valley. The routes offer panoramic views of the Carneddau mountain range and peaks like Pen Llithrig y Wrach. The area is known for its wide-open spaces and the rugged charm of Snowdonia National Park.
Yes, the area is rich in history. You can cycle past the remains of the Llyn Eigiau dam, which has a poignant story from 1925, and observe old slate quarries that speak to the region's industrial heritage. Some routes, like the Sixteen – Conwy Castle loop from Dolgarrog, also lead past iconic landmarks such as Conwy Castle.
There are over 20 road cycling routes available around Llyn Eigiau, catering to various skill levels. This includes 7 easy routes, 12 moderate routes, and 5 difficult routes, ensuring options for every cyclist.
The area is highly rated by the komoot community, with an average score of 4.8 stars from over 29 reviews. Reviewers often praise the stunning glaciated valleys, the dramatic mountain panoramas, and the varied terrain that offers both scenic rolls and challenging climbs.
Yes, many of the road cycling routes around Llyn Eigiau 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, providing convenient options for exploring the region.
There is a car park located within walking distance of Llyn Eigiau itself, approximately half a mile from the dam, making it accessible for visitors. Additionally, many routes start from villages like Capel Curig or Dolgarrog, where public parking facilities may be available.
Yes, the delightful village of Rowen is considered one of Wales' prettiest and is a notable point of interest nearby. Depending on your chosen route, you might also pass through or near Capel Curig or Dolgarrog, which serve as common starting points for many rides.
While Llyn Eigiau offers cycling opportunities year-round, the spring and summer months generally provide the most favorable weather conditions for road cycling. The open spaces can be exposed, so checking the local forecast is always advisable, especially for mountain weather.
Yes, the wider Snowdonia region, which encompasses Llyn Eigiau, is known for its natural beauty, including waterfalls. For example, the 'Waterfalls on the River Ogwen – Nant Ffrancon Cycle Route loop from Capel Curig' is a more challenging route that highlights this feature, though it requires very good fitness.


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