4.6
(38)
2,756
riders
79
rides
Road cycling routes around Llyn Peris navigate a landscape characterized by glacial lakes, deep valleys, and mountain passes within the Snowdonia region. The area features varied terrain, including roads that trace the shores of Llyn Peris and ascend towards higher elevations. Road cyclists can expect a mix of flat sections along the lake and more significant climbs into the surrounding hills and passes. This region offers a diverse environment for road cycling, combining natural beauty with challenging ascents.
Last updated: July 8, 2026
24
riders
24.9km
01:35
600m
600m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
50
riders
55.7km
02:43
780m
780m
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

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38
riders
50.0km
02:15
350m
350m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
15
riders
78.0km
03:53
1,030m
1,030m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
19
riders
31.1km
02:15
570m
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)
7
0
Loved this place and not far from Swallow Falls
1
0
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
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 road cycling routes around Llyn Peris cater to various skill levels. You'll find 20 easy routes, 51 moderate routes, and 10 difficult routes. For instance, the Llyn Cwellyn – Pont Aberglaslyn loop from Llanberis is a challenging option with over 1000 meters of elevation gain, while many moderate routes offer a balanced experience.
Yes, Llyn Peris offers 20 easy road cycling routes that are suitable for beginners or families looking for a less strenuous ride. These routes typically feature flatter sections along the lake, providing a pleasant experience without significant climbs.
Road cycling routes around Llyn Peris vary significantly in length. You can find shorter loops, such as the View of Llyn Peris – Marchlyn Mawr Reservoir Climb loop from Llanberis at 15.5 miles (24.9 km), to much longer and more challenging rides like the Llyn Cwellyn – Pont Aberglaslyn loop from Llanberis, which spans nearly 48.5 miles (78 km).
Many road cycling routes around Llyn Peris, particularly those starting from Llanberis, offer convenient parking options. Llanberis serves as a popular hub, and you can often find public car parks suitable for accessing the trails. It's advisable to check local parking information for specific starting points before your ride.
Llanberis is a very common starting point for road cycling routes around Llyn Peris. Many popular loops, including the Caernarfon Castle – View of Llyn Peris loop from Llanberis and the Pen-y-Pass – Nant Peris Valley loop from Llanberis, begin and end in this village, offering good access to the lake and surrounding mountains.
Yes, many of the road cycling routes around Llyn Peris are designed as loops, allowing you to start and finish in the same location. Examples include the Caernarfon Castle – View of Llyn Peris loop from Llanberis and the Llanberis Lake Railway – View of Llyn Peris loop from Llanberis, which offer varied scenery and return to your starting point.
The best season for road biking around Llyn Peris is typically from late spring to early autumn (May to October). During these months, the weather is generally milder, and the days are longer, providing more comfortable riding conditions and better visibility of the stunning landscapes. Always check the local forecast before heading out.
Road cycling routes around Llyn Peris offer spectacular views of glacial lakes, deep valleys, and mountain passes within Snowdonia. You can expect expansive vistas of Llyn Peris itself, as well as panoramic scenes from higher elevations, such as those encountered on the View of Llyn Peris – Marchlyn Mawr Reservoir Climb loop from Llanberis.
While specific cafes are not listed for every route, many routes start or pass through villages like Llanberis, which offer various cafes, pubs, and shops where you can refuel and refresh. Planning your route with potential stops in mind is recommended, especially for longer rides.
The komoot community highly rates road cycling in Llyn Peris, with an average score of 4.4 stars from over 30 reviews. Cyclists often praise the diverse terrain, combining flat sections along the lake with challenging ascents, and the stunning natural beauty of the Snowdonia landscape, including the dramatic mountain passes and serene lake views.
There are over 80 road cycling routes available around Llyn Peris, offering a wide range of options for different preferences and fitness levels. This includes 20 easy, 51 moderate, and 10 difficult routes, ensuring there's something for every road cyclist.


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