5.0
(1)
209
runners
22
runs
Jogging around Cors Y Llyn National Nature Reserve offers routes through varied terrain, characterized by woodlands and open areas. The landscape features gentle elevation changes, with most routes remaining below 200 meters of ascent. This region provides a network of trails suitable for different running preferences, from moderate paths to more challenging options.
Last updated: July 5, 2026
27
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
runners
11.2km
01:18
250m
250m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(1)
5
runners
7.63km
00:51
130m
130m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
16
runners
9.53km
01:02
140m
140m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
16
runners
9.73km
01:08
140m
140m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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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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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Builth Wells is a pretty market town in the heart of Mid Wales. Situated at the meeting of the Rivers Irfon and Wye. If you're staying awhile, shop's, cafe's and usual facilities are available, with the Builth Castle (earthworks only now surviving) providing good panoramic views over the town.
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A good place to stock up with supplies on Route 8. Friday is market day.
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Best for food resupply is the co-op, just off the main high street.
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A nice easy gravel ride with stunning views across the valley
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There are three humps (over 100m) on the outskirts of Builth Wells. This link takes you to a hike that takes in two of them namely Garth Hill and Moelfre. https://www.komoot.com/tour/264906708
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There are over 20 running routes available around Cors Y Llyn National Nature Reserve, offering a variety of options for different preferences and fitness levels.
While most routes are classified as moderate, the area's landscape features gentle elevation changes, making many paths accessible for beginners. For example, the Coed Chwefri loop from Builth Road has minimal elevation gain, making it a good option to start with.
The running trails in Cors Y Llyn National Nature Reserve are characterized by a mix of woodlands, open areas, and river valleys. You'll encounter varied terrain, from well-trodden paths to more natural surfaces, with most routes featuring gentle to moderate elevation changes.
Yes, for those seeking a challenge, there are routes with more significant elevation. The Ty'n-y-lon Wood loop from Newbridge on Wye, for instance, includes a notable ascent of 255 meters over its 11.2 km distance, providing a more demanding experience.
Many of the routes are suitable for families, especially those looking for moderate activity. The varied terrain and natural surroundings offer an engaging experience. Consider routes with lower elevation gains for younger family members.
Generally, dogs are welcome on public footpaths and trails within the National Nature Reserve, but it's essential to keep them under control, especially near livestock or sensitive wildlife areas. Always check local signage for specific restrictions.
Yes, many of the routes around Cors Y Llyn National Nature Reserve are designed as loops, allowing you to start and finish in the same location. Examples include the Builth Wells Town Centre – Builth Wells Bridge loop from Builth Wells and the Upper Llanelwedd Wood loop from Builth Wells.
The reserve offers enjoyable running conditions throughout much of the year. Spring and autumn provide pleasant temperatures and beautiful scenery. Summer is also popular, though some paths might be busier. Winter running is possible, but trails can be muddy or icy, so appropriate footwear is recommended.
Layered clothing is advisable due to changeable weather. Sturdy running shoes with good grip are recommended for the varied terrain, especially after rain. In winter, waterproof and insulated layers are essential, along with trail-specific footwear.
While specific viewpoints are not highlighted, the routes often traverse woodlands and open countryside, offering natural scenic beauty. The river valleys and elevated sections, such as those on the Co-op, Builth Wells – Builth Wells Bridge loop from Builth Wells, provide picturesque views of the surrounding landscape.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Runners often praise the varied terrain, the peaceful woodland sections, and the opportunity to explore the natural beauty of the reserve.
Public transport options to specific trailheads may be limited. It's advisable to check local bus services for routes that pass near the reserve or towns like Builth Wells and Newbridge on Wye, which serve as starting points for several routes.
Parking is typically available in nearby towns and villages such as Builth Wells and Newbridge on Wye, which serve as common starting points for many routes. Always check local signage for parking regulations and fees.


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