Marchlyn Mawr Reservoir Climb
Marchlyn Mawr Reservoir Climb
Highlight (Segment) • Lake
Road cycling
5.0
(9)
This Highlight goes through a protected area
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Tips
June 5, 2020
Road cycling
November 3, 2018
Road cycling

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Nearby routes
Best routes near Marchlyn Mawr Reservoir Climb

4.8
(4)
213
riders
54.6km
02:57
1,000m
1,000m
Embark on the Pen y Pass and Marchlyn Mawr climb loop from Llanberis, a difficult road cycling route that challenges you with 3296 feet (1004 metres) of elevation gain. This 34.0 miles (54.6 km) journey takes approximately 2 hours and 56 minutes to complete, offering a substantial test of your cycling prowess. As you climb, you will experience impressive mountain scenery, passing by the iconic Yr Wyddfa (Snowdon) and enjoying expansive views across Snowdonia, with glimpses of Anglesey from higher points.
When planning your ride, be aware that the road leading to Marchlyn Mawr Dam is typically closed to cars but remains accessible for bikes. You might need to lift your bike over a gate to continue on this section of the route. Given the steep gradients encountered throughout the loop, equipping your bike with sensible gearing is highly recommended to manage the challenging ascents effectively. This preparation ensures a smoother and more enjoyable experience on the demanding climbs.
This route immerses you in the dramatic Welsh landscape, particularly around the remote Marchlyn Mawr reservoir area, which provides a stunning and isolated backdrop for your ride. The continuous, panoramic vistas you gain from the challenging climbs are a significant reward, showcasing the natural beauty of Eryri National Park. It is a prime example of a route that combines rigorous physical exertion with truly memorable natural surroundings, making it a notable challenge in the region.

25
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

24
riders
24.9km
01:35
600m
600m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
Details
Informations
Distance 7.65 km
Uphill 580 m
Downhill 50 m
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Saturday 11 July
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16°C
0 %
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Max wind speed: 18.0 km/h
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