4.9
(16)
474
riders
11
rides
No traffic touring cycling routes around Cors Y Llyn National Nature Reserve traverse a landscape shaped by glacial origins, featuring acidic bogs, fenland, and wet woodlands. The wider region of Mid Wales offers varied terrain, from country lanes and river valleys to mountain roads. While the reserve itself is primarily for walking, its surroundings provide extensive cycling networks through diverse natural features. The area is characterized by its significant ecological and geological elements, including wildflower meadows and open water, making it a compelling destination for touring cyclists.
Last updated: July 9, 2026
5.0
(1)
30
riders
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
8
riders
97.9km
06:47
1,350m
1,350m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
13.1km
01:08
290m
290m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
43.4km
02:50
510m
510m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
110km
07:32
1,770m
1,770m
Embark on the Radnor Ring Cycle Route, a challenging touring bicycle adventure that winds through the diverse landscapes of Mid-Wales. This difficult route spans 68.5 miles (110.2 km) and features a significant elevation gain of 5817 feet (1773 metres), requiring good fitness to complete in an estimated 7 hours and 31 minutes. You will experience a mix of quiet country lanes, scenic river valleys, and demanding mountain roads, all while enjoying views of both stark uplands and lush, green terrain. Keep an eye out for the impressive viaduct at Knucklas, a notable landmark along the way. You will cycle through open moorland, varied woodlands, and deep valleys, crossing the border between Wales and England multiple times.
Given the route's difficulty and substantial climbing, many cyclists choose to spread the journey over two to three days. This allows you to fully appreciate the scenery and manage the more strenuous sections at a comfortable pace. Along the way, you will find charming towns and villages that offer opportunities for accommodation, meals, and resupplies. Consider your parking and start points carefully, as many quiet lanes provide a peaceful beginning to your ride with minimal motor traffic.
The Radnor Ring is more than just a cycle route; it is an immersive journey into the heart of Mid-Wales, showcasing its natural beauty and varied topography. The trail's blend of open moorland, dense woodlands, and deep valleys provides a constantly changing backdrop for your ride. This route is particularly notable for its spectacular views and the unique experience of traversing the border between Wales and England multiple times, offering a distinct sense of place and adventure.
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Popular around Cors Y Llyn National Nature Reserve
We rode this on the record breaking hottest May day ever, after a dry spell. Even so, there were a couple of deep muddy wet sections, which in these conditions just made it fun. It was a fantastic fun ride but I can see it really would be hard going in the wet. The. views are fabulous so definitely a route to enjoy.
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So much fun and a great surface
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Great little town, has a lot to offer and has some great walks along the river and the surrounding area.
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Beautiful church in the centre of Builth. Had a stroll through the grounds on my visit.
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He had come south to rally the men of the Lordship of Builth in December 1282, as part of a dispute about the ownership of the commote of Arwystli. In the centre of Builth Wells there is a 1000 feet square mural depicting the final days of Llywelyn ap Gruffydd, the last native Prince of Wales.
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This life-size statue of a Welsh Black bull stands near the town's Wye Bridge. Made from bronze, the Builth Bull weighs 1.5 tons and was created by Gavin Fifield, a local sculptor. It was unveiled on 28 November 2005 to coincide with the first day of that year's Royal Welsh Winter Fair.
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Recently dressed with slate. I would no longer recommend road tyres through here. Something a bit wider recommended!
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There are 12 dedicated no-traffic touring cycling routes around Cors Y Llyn National Nature Reserve featured in this guide. These routes offer a variety of distances and challenges, allowing you to explore the beautiful Mid Wales landscape with minimal vehicle interference.
The routes around Cors Y Llyn National Nature Reserve tend to be on the more challenging side for touring cyclists. This guide features 2 moderate and 10 difficult routes, often involving significant elevation changes. For example, the Abergwesyn Valley – View of Llyn Brianne Reservoir loop from Cilmeri covers nearly 98 km with over 1300 meters of ascent.
You can expect a mix of terrain, often following quiet country lanes, river valleys, and some mountain roads. While the Cors Y Llyn reserve itself has an accessible boardwalk, the touring routes in the wider area, such as sections of National Cycle Route 8 (Lon Las Cymru) and Route 825 (Radnor Ring), will feature paved roads and potentially some well-maintained gravel sections, offering varied and picturesque scenery.
While many routes in this guide are rated moderate to difficult, the wider Mid Wales region offers family-friendly options. The Elan Valley Cycle Trails near Rhayader, for instance, provide scenic waterside routes suitable for families. For routes directly around Cors Y Llyn, consider shorter sections of the longer tours or routes with less elevation if cycling with younger family members.
The region is rich in natural beauty and interesting features. You'll encounter landscapes shaped by glacial origins, acidic bogs, and wildflower meadows. Routes often pass through areas with wet woodlands and offer views of open water. The Abergwesyn Valley – View of Llyn Brianne Reservoir loop from Cilmeri, for example, offers stunning reservoir views. The reserve itself is home to diverse wildlife, including various birds, butterflies, dragonflies, and amphibians. For more information on the reserve's unique features, you can visit Visit Mid Wales.
Spring and summer are ideal for cycling around Cors Y Llyn, as the wildflower meadows come alive with orchids and other blooms, attracting numerous butterflies. The weather is generally milder, making for more pleasant touring. However, the region's natural beauty can be enjoyed year-round, with autumn offering vibrant foliage and winter providing a quieter, more serene experience, though with colder temperatures and potentially more challenging conditions.
For routes starting near towns, you can typically find parking in places like Builth Wells or Newbridge-on-Wye, which are close to Cors Y Llyn and offer amenities. Specific starting points for routes, such as the Doliago Farm Campsite – Ancient Coach Road Gravel Path loop from Builth Road, will have designated parking areas or nearby facilities. Always check the individual route details on Komoot for precise parking information.
Yes, many of the routes in this guide are circular, designed for a complete touring experience. For instance, the Co-op, Builth Wells – Builth Wells Town Centre loop from Builth Wells is a moderate 13 km circular route. The wider region also features the Route 825 (Radnor Ring), which is an almost-circular route offering spectacular views.
The towns of Builth Wells and Newbridge-on-Wye, both located near Cors Y Llyn, offer various amenities for cyclists, including cafes, pubs, and shops. These towns serve as good starting or stopping points for your tours, providing opportunities for refreshments and supplies. Always plan your route to include stops in these towns if you require specific services.
The area is highly rated by the komoot community, with an average score of 4.8 stars. Reviewers often praise the quiet, scenic country lanes, the challenging yet rewarding climbs, and the opportunity to immerse themselves in the stunning Mid Wales landscape with minimal traffic. The diverse natural features and charming towns along the way are also frequently highlighted.
Public transport options exist to reach the general area. Builth Wells, a key town near Cors Y Llyn, has bus services and is on the Heart of Wales railway line, making it accessible by train. From these towns, you can connect to various cycling routes. It's advisable to check local bus and train schedules in advance, especially regarding bicycle carriage policies.
Yes, the significant National Cycle Route 8 (Lon Las Cymru) traverses Mid Wales, passing through towns like Builth Wells and Newbridge-on-Wye, which are very close to Cors Y Llyn. This route offers both on-road and traffic-free sections, allowing touring cyclists to integrate a visit to the Cors Y Llyn area into a longer journey across Wales.


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