4.7
(7)
1,665
runners
139
runs
Jogging routes Llwyn-Y-Pia are set within the Rhondda Fawr Valley, offering a diverse landscape for runners. The region features a mix of inclines and flatter sections alongside the River Rhondda Fawr. Runners can explore re-vegetated former mining landscapes, which now provide green views across the Taff and Cynon valleys. The area's topography, characterized by hills and valleys, creates varied terrain suitable for different jogging preferences.
Last updated: May 9, 2026
28
runners
8.32km
00:52
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
16
runners
13.5km
01:25
150m
150m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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9
runners
7.57km
00:48
100m
100m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5
runners
15.8km
01:50
400m
400m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
runners
22.7km
02:30
410m
400m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The water here is stunning in the sunlight. A good place to take a few moments to rest the legs.
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Lluest-wen Reservoir was constructed in 1898, but came to national attention in 1969 when a major leak caused an evacuation of residents down-valley while emergency repair work was carried out. Back in 1929 the place set a maximum daily rainfall record for Wales, with 211mm of rain recorded. You have been warned!
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Lluest-wen Reservoir was constructed in 1898, but came to national attention in 1969 when a major leak caused an evacuation of residents down-valley while emergency repair work was carried out. Back in 1929 the place set a maximum daily rainfall record for Wales, with 211mm of rain recorded. You have been warned!
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A view point over the whole reservoir and a lovely spot for some lunch.
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There are over 140 running routes in the Llwyn-Y-Pia area, catering to various fitness levels. You'll find a good mix of easy, moderate, and challenging trails to explore.
The terrain around Llwyn-Y-Pia is quite varied, reflecting its location in the Rhondda Fawr Valley. You can expect a mix of inclines and flatter sections alongside the River Rhondda Fawr, as well as paths through re-vegetated former mining landscapes. Some routes, like those near Pen-Pych Mountain, offer more rugged, steep, and uneven sections, while others, such as parts of Cwm Clydach Countryside Park, provide easier, more accessible paths.
Yes, Llwyn-Y-Pia offers several easy running paths. For instance, the Tonypandy Heritage Trail loop from Tonypandy is an easy 5 km route that takes about 30 minutes to complete. Cwm Clydach Countryside Park also features easy, accessible paths, including a shorter 3.75 km loop around Cwm Clydach Stream.
Absolutely. Many of the running routes in Llwyn-Y-Pia are circular, allowing you to start and finish in the same location. Examples include the Running loop from Ystrad Rhondda, a moderate 8.3 km trail, and the Tonypandy Heritage Trail loop from Gelli, which is 7.6 km. Cwm Clydach Countryside Park also offers a 6.81 km 'Clydach Lakes loop'.
Yes, the region is known for its natural beauty. The area around Pen-Pych Mountain offers dramatic waterfalls like Pen-Pych Waterfall, Nant Carnfoesan, and Nant Melyn, along with panoramic views of the Rhondda Fawr Valley. Bwlch Mountain is also renowned for its scenic viewpoints across the Rhondda Cynon Taf, Neath Port Talbot, and Bridgend valleys. Cwm Clydach Countryside Park features two lakes and waterfalls, providing stunning views for runners.
The running routes in Llwyn-Y-Pia are highly rated by the komoot community, with an average score of 4.7 stars from over 7 reviews. Runners often praise the diverse landscapes, the mix of inclines and flatter sections, and the opportunity to explore both natural beauty and local heritage.
Yes, for those seeking a greater challenge, Llwyn-Y-Pia has several difficult routes. The Running loop from Llwynypia is a demanding 15.7 km trail through the Rhondda Fawr Valley. Another challenging option is the Lluest-Wen Reservoir – Lluest-wen Reservoir Dam Wall loop from Penrhys, which spans nearly 22.7 km with significant elevation changes.
Beyond the trails, you can find several interesting landmarks and attractions. The Bwlch Mountain Climb from Treorchy offers a viewpoint, and the Pen-Pych Waterfall is a notable natural feature. The region's history as a coal mining area means you might encounter re-vegetated landscapes that offer views of the Taff and Cynon valleys, adding historical context to your run.
Yes, areas like Cwm Clydach Countryside Park offer easy, accessible paths that are suitable for families. The shorter 3.75 km loop around Cwm Clydach Stream is a good option for a more relaxed family run, providing an enjoyable outdoor experience without excessive difficulty.
Llwyn-Y-Pia offers enjoyable running conditions throughout much of the year. Spring and autumn provide pleasant temperatures and beautiful scenery with changing foliage. Summer is also great, though some trails might be more exposed. Winter running is possible, but be prepared for potentially wet or muddy conditions, especially on more rugged trails.
Yes, the region's history is woven into its landscape. The Tonypandy Heritage Trail loop from Gelli is a moderate 7.6 km path that winds through areas with historical context, providing a unique blend of natural beauty and local heritage from the former mining landscapes.


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