4.3
(257)
13,245
riders
348
rides
Road cycling routes around Tongwynlais offer varied terrain, from riverside paths along the Taff Trail to challenging climbs towards Caerphilly Mountain. The area features a mix of woodland, open landscapes, and routes that pass notable landmarks such as Castell Coch. This region provides a diverse environment for road cyclists, with options ranging from gentle, flat sections to routes with significant elevation gain.
Last updated: July 1, 2026
5.0
(3)
29
riders
69.7km
03:55
1,260m
1,260m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.3
(3)
299
riders
83.9km
03:44
680m
680m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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5.0
(2)
221
riders
32.4km
01:25
110m
110m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
44
riders
83.3km
04:12
1,090m
1,090m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
23
riders
68.1km
03:17
750m
750m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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This bridge gives great views of the marina, and forms part of the Cardiff Bay loop
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The Barrage connects Penarth to the Cardiff peninsula. It offers stunning views across the sea to one side, and the freshwater bay on the other. One of the highlights of the Cardiff Bay tour
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Great photo opportunity, but the area can be busy depending on the weather and it’s likely any progress on a bike would be very slow. Early mornings and evenings are good.
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Some great views of the valley below once you get on the viaduct
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Great place to meet up with family or friends before your planned adventure.
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Every day, this narrow crossing offers a new perspective on life. It's a unique place where you feel enveloped in blue. Love it!
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Cardiff Bay Barrage is a significant engineering project located in Cardiff, Wales. Completed in 1999, the barrage was built to create a freshwater lake in Cardiff Bay by damming the River Taff and the River Ely. This project transformed the bay area, which was previously a tidal estuary, into a more controlled water environment. Key Features and Purpose: Tidal Control: The barrage helps manage tidal flows, preventing flooding and allowing for the creation of a stable freshwater environment. Recreation and Tourism: The area around the barrage has been developed for recreational use, including walking and cycling paths, boating, and various leisure activities. It has become a popular destination for both locals and tourists. Environmental Impact: The construction of the barrage altered the local ecosystem. While it created new habitats in the freshwater lake, it also raised concerns about the impact on marine life in the estuary. Hydropower Generation: The barrage includes a small power station that harnesses tidal energy, contributing to renewable energy production. Economic Development: The project played a crucial role in the regeneration of Cardiff Bay, leading to significant investment and development in the area, including residential, commercial, and cultural projects. The Cardiff Bay Barrage is often noted for its engineering complexity and its role in transforming the landscape and economy of Cardiff.
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Good Coffee and Cake, but really loud (too loud) music. But always a welcome stop.
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Tongwynlais offers a wide selection of road cycling routes, with over 370 options available. This includes routes suitable for various skill levels, from easy riverside paths to challenging climbs.
The terrain around Tongwynlais is quite varied. You'll find relatively flat, scenic sections along the Taff Trail and riverside areas, as well as more challenging routes with significant elevation gain, particularly towards natural features like Caerphilly Mountain and through Fforest Fawr woodland.
Yes, for experienced road cyclists seeking a challenge, the region offers routes with substantial climbs. For instance, the Mynydd Meio loop from Caerphilly loop is a difficult route featuring over 4,100 feet (1,260 meters) of elevation gain. Other routes, like the Rhigos Climb Viewpoint – Radyr Weir loop from Radyr, also include significant ascents.
Absolutely. The area provides numerous easy routes, with over 100 options suitable for families or those preferring a gentler ride. The Taff Trail, accessible from Tongwynlais, is particularly well-suited for family outings, offering a generally easy and picturesque path along the River Taff.
Road cycling routes around Tongwynlais pass by several notable landmarks and natural features. You can cycle past the iconic Radyr Weir, enjoy views of Garth Summit, or see the picturesque Cardiff Bay. The stunning Castell Coch is also a prominent feature on the hillside above the village, often visible from nearby routes like the View of Castell Coch – Bridge Over the River Taff loop from Coryton.
Yes, many of the road cycling routes around Tongwynlais are designed as loops, allowing you to start and finish in the same location. Examples include the Mynydd Meio loop from Caerphilly loop and the Llandaff Weir – Radyr Weir loop from Taffs Well, providing convenient options for exploring the region.
The road cycling routes in Tongwynlais are highly regarded by the komoot community, holding an average rating of 4.2 stars from over 190 reviews. Cyclists often praise the diverse terrain, from the scenic Taff Trail to challenging ascents, and the opportunity to pass by notable landmarks and natural beauty.
Road cycling in Tongwynlais is enjoyable throughout much of the year. Spring and summer offer pleasant weather for exploring, while autumn is particularly vibrant with scenic woodland and riverside views along the Taff Trail. Winter cycling is possible, but routes may require more preparation due to weather conditions.
Tongwynlais village itself is a convenient hub for cyclists, offering local shops, pubs like the Lewis Arms and Ty Nant, and tea rooms. These establishments provide excellent opportunities for refreshments and breaks during your ride.
Yes, parking is generally available in and around Tongwynlais, making it convenient to access the various road cycling routes. Many routes start from locations with parking facilities, and the village itself offers amenities for visitors.
The road cycling routes around Tongwynlais vary significantly in length. You can find shorter, easy loops like the Llandaff Weir – Radyr Weir loop from Taffs Well, which is about 12.7 miles (20.4 km), to much longer and more challenging rides such as the Rhigos Climb Viewpoint – Radyr Weir loop from Radyr, spanning over 52 miles (83.7 km).
Absolutely. Tongwynlais is a key access point for the Taff Trail, a 55-mile walking and cycling path. Many road cycling routes in the area incorporate sections of the Taff Trail, allowing you to enjoy its picturesque riverside scenery and generally easy terrain as part of a longer road ride.


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