4.2
(59)
4,950
riders
182
rides
Road cycling around Ynysybwl And Coed-Y-Cwm offers a diverse landscape characterized by the Welsh Valleys, lush woodlands, and numerous reservoirs. The terrain includes a mix of well-paved roads and some challenging segments, providing varied experiences for cyclists. The region features significant elevation changes, with routes winding through valleys and over hills, offering both moderate and demanding options. Natural features such as the Taf Fawr river and St Gwynno Forest contribute to the scenic backdrop of the road cycling routes.
Last updated: May 11, 2026
42
riders
53.5km
02:33
510m
510m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
29
riders
68.4km
03:16
700m
700m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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3.0
(1)
23
riders
93.7km
04:17
810m
810m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
25
riders
31.1km
01:39
460m
460m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
25
riders
108km
05:00
1,180m
1,180m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
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Magnificent structure and a great photo opportunity and one of many within the park.
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Climbing the Bwlch Mountain southwards from Treorchy (A4061) is a classic South Wales Valleys experience, offering a long, steady ascent. The road winds up from the Rhondda valley onto open moorland where the main challenge often becomes the significant exposure to wind. Enjoy the sweeping panoramic views from the top of this popular and rewarding climb.
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The weir spans the River Taff, which flows directly through the heart of South Wales. It's a nice place to stop and refuel with picnic benches and a peaceful atmosphere.
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Nice picturesque reservoir with a great campsite just below it if you are on a bike or hiking tour.
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Cefn-coed Viaduct was built in 1866 and is 770 ft (235 m) long and 120 ft (36.6 m) high. It is a rusticated-limestone structure of fifteen arches, set on a curve. The tall, slender piers and parapets are constructed with coursed irregular sized rock-faced limestone blocks
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The Cefn-coed Viaduct is the third-largest viaduct in Wales. This huge, curved structure once carried the Brecon and Merthyr Tydfil Junction Railway and is now part of the Taff Trail, which is Route 8 of the National Cycle Network that runs between Cardiff and Brecon. It offers walkers and cyclists a superb view of the Taf Fawr as it cascades over the many weirs in the valley
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A very pretty and accessible dam, the spillover makes it a lovely scenic addition to your loop of the reservoir or the nearby forest. There are lovely picnic areas on the way around the dam, some eating spots by way of a roadside 'scoff' van in a nearby lay-by on the eastern shore, and the cafe at Garwnant Visitor Centre on the north side of the reservoir.
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There are over 180 road cycling routes around Ynysybwl And Coed-Y-Cwm. This extensive network offers a wide variety of options for cyclists of all levels.
The routes in Ynysybwl And Coed-Y-Cwm cater to a range of abilities. You'll find approximately 23 easy routes, 110 moderate routes, and 50 more challenging options, ensuring there's something for everyone from beginners to experienced riders.
The region offers a diverse landscape with varied terrain. Expect a mix of well-paved roads, some unpaved or challenging segments, and significant elevation changes as routes wind through the Welsh Valleys and over hills. You'll encounter both gradual climbs and more demanding ascents.
Yes, the region offers routes suitable for families. The extensive Taff Trail, accessible via the Lady Windsor Cyclepath from Ynysybwl, provides lengthy traffic-free sections along former railway lines and riverside paths, which are ideal for family rides. Additionally, National Cycle Network Route 881 offers traffic-free paths from Lluest-Wen Reservoir.
You'll encounter stunning natural beauty, including picturesque reservoirs like Llwyn-on Reservoir Dam, Castell Nos Reservoir, and Lluest-Wen Reservoir. The Taf Fawr river with its cascading weirs, lush woodlands such as St Gwynno Forest and Coed y Cwm, and the quintessential Welsh landscape of mountains and wooded valleys are prominent features. The Pistyll-Goleu waterfall also adds to the scenic beauty.
Absolutely. Cyclists can pass by the impressive Cefn-coed Viaduct, the third-largest in Wales, offering superb views of the Taf Fawr. Nearby, you can explore the Rhondda Heritage Park, which provides insight into the region's industrial past. From Pontypridd, routes can also lead to historic sites like Castell Coch and Caerphilly Castle.
While specific parking areas for cyclists are not detailed for every route, Ynysybwl village and other starting points for routes often have public parking facilities. It's advisable to check local council websites or komoot route details for specific parking information near your chosen starting point.
The area is highly rated by the komoot community, with an average score of 4.2 stars from over 50 reviews. Cyclists often praise the varied terrain, the beautiful Welsh Valleys, dense woodlands, and picturesque reservoirs that define the routes, offering both moderate rides and more demanding challenges.
Yes, local initiatives have actively developed and improved circular cycling routes within Ynysybwl and St Gwynno's forestry. Examples include the Cwm Cadlan Nature Reserve – Llwyn-on Reservoir Dam loop and the View of Cwm Parc and Treorchy – Tonypandy Heritage Trail loop, which are popular choices.
Yes, public transport options are available. The Lady Windsor Cyclepath connects Ynysybwl directly to the Taff Trail, which is part of National Cycle Network Route 8, spanning between Cardiff and Brecon. This makes it possible to reach the area and access routes via public transport links to these larger towns.
While specific establishments are not listed for every route, the towns and villages within and around Ynysybwl and Coed-Y-Cwm, such as Pontypridd and Mountain Ash, offer various cafes and pubs where cyclists can stop for refreshments. It's recommended to check local listings for options along your chosen route.
The South Wales Valleys generally offer good cycling conditions from spring through autumn. During these seasons, you can expect milder weather and lush landscapes. While winter cycling is possible, be prepared for colder temperatures, potentially wet conditions, and shorter daylight hours.


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