Highlight • Natural Monument
Llyn Ogwen
Road cycling
4.9
(40)
Hiking
5.0
(7)
This Highlight is in a protected area
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Tips
June 24, 2024
Road cycling
November 30, 2020
Road cycling
August 7, 2022
Road cycling
Cafe and toilets at Ogwen cottage at the western end of Llyn Ogwen managed by the National Park.
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Nearby routes
Best routes near Llyn Ogwen
4.6
(8)
345
riders
Embark on a challenging racebike loop through Snowdonia National Park, covering 30.6 miles (49.3 km) with a significant 2346 feet (715 metres) of elevation gain. This route, which takes about 2 hours and 29 minutes to complete, offers dramatic mountain landscapes and a mix of historic industrial heritage. You will cycle past the stunning Llyn Ogwen, with the imposing peaks of Tryfan and Pen yr Ole Wen as a backdrop, before tackling the spectacular road climb of Llanberis Pass, framed by Snowdon and the Glyders.
This loop is considered a moderate road ride, but it demands very good fitness due to its significant climbs and varied terrain. While most surfaces are well-paved, be prepared for some unpaved sections that can be challenging and might even require you to push your bike. Planning your ride with good fitness in mind will ensure you can fully enjoy the demanding ascents and the rewarding descents.
The route is notable for traversing some of Snowdonia's most iconic landscapes, popular with outdoor enthusiasts. A significant part of the journey includes the Lon Las Ogwen cycleway, celebrated as one of North Wales' finest cycle trails, which follows a former railway line and offers a gentler experience with spectacular views. You will also gain insight into the region's rich geological and industrial history, with glimpses of the slate quarrying industry, including the Penrhyn Quarry.
4.8
(4)
219
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.
4.2
(5)
229
riders
70.5km
03:31
1,010m
1,010m
Embark on the Sychnant Pass and Conwy Valley Loop from Bethesda, a difficult road cycling route designed for race bikes. This challenging 43.8-mile (70.5 km) journey takes you through dramatic landscapes within Eryri National Park, offering panoramic views of the Carneddau Mountains and the Conwy Estuary. You will gain 3308 feet (1008 metres) in elevation, with the ride estimated to take around 3 hours and 31 minutes. As you cycle, you will experience a mix of rolling hills and steep cliffs, particularly around the Sychnant Pass Climb from Capelulo. Keep an eye out for wild ponies and diverse bird species that add to the natural beauty of the Conwy Valley.
When planning your ride, be aware that the road at the summit of Sychnant Pass is narrow. Visibility can be restricted by deep shade or blinding sunshine, so consider starting earlier in the day. You should also be prepared for potential close encounters with motor vehicles, horses, and walkers due to the lack of designated cycling space. The speed limit on the pass is 40mph, with additional warning signage in place to guide you.
This route stands out for its unique blend of challenging terrain and rich natural environment. You will find yourself immersed in the heart of Eryri National Park, a region known for its rugged beauty. The Conwy Valley itself is a haven for wildlife, making the journey more than just a physical test. This loop offers a memorable experience for any road cyclist seeking a demanding ride with rewarding views.
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Elevation 320 m
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