4.3
(140)
7,413
riders
185
rides
Road cycling routes around Cosmeston Lakes integrate with wider networks, providing access to coastal scenery and rolling green landscapes of the Vale of Glamorgan. The area features a mix of dedicated cycle paths and quiet country lanes, connecting to nearby towns like Penarth and Barry. The park itself is characterized by two main lakes, originally flooded limestone quarries, surrounded by diverse habitats including woodlands and meadows. This provides varied terrain for road cyclists, from flat sections to routes with significant…
Last updated: May 16, 2026
162
riders
49.9km
02:00
180m
170m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
5.0
(1)
65
riders
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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3.0
(2)
66
riders
30.4km
01:22
220m
220m
Moderate road ride. Great for any fitness level. Some segments of this route may be unpaved and difficult to ride.
5.0
(1)
56
riders
Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.
3.0
(1)
31
riders
15.4km
00:39
100m
100m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.
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Each lock is crossed by a Bascule bridge, to carry pedestrians and vehicles across. These are lifted for boats to pass. The weight of the bridge deck is counterbalanced by an overhead weight on the opposite side of the pivot. Five sluice gates control the level of water in the Bay. Each sluice gate is 9 metres wide and 7.5 metres high. The sluices open to maintain the level of the Bay, and close when the estuary level is higher than the Bay to prevent seawater entering the freshwater lake.
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This imposing building stands out from the relatively flat surroundings and harks to a by-gone era. Impressive stature!
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Great place to meet up with family or friends before your planned adventure.
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Great cafe on the A48, with plenty of space to lock up your bike as you head in for coffee, etc.
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Good Coffee and Cake, but really loud (too loud) music. But always a welcome stop.
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The St Lythans burial chamber (Welsh: Siambr Gladdu Llwyneliddon) is a single stone megalithic dolmen, built around 4,000 BC as part of a chambered long barrow, during the mid Neolithic period, in what is now known as the Vale of Glamorgan. It lies about half a mile (1 km) to the west of the hamlet of St Lythans, near Dyffryn Gardens. The site is on pasture land, but pedestrian access is allowed and is free. https://en.wikipedia.org/wiki/St_Lythans_burial_chamber
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Nice place to stop for a coffee & cake break next to the white water rafting Centre.
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There are over 190 road cycling routes available around Cosmeston Lakes, offering a wide variety of options for different preferences and fitness levels. These routes are highly rated by the komoot community, with an average score of 4.3 stars from over 100 reviews.
The road cycling routes around Cosmeston Lakes cater to various fitness levels. You'll find approximately 64 easy routes, 114 moderate routes, and 20 more challenging options, ensuring there's something for everyone from beginners to experienced cyclists.
The region offers enjoyable cycling throughout much of the year. Spring and autumn provide pleasant temperatures and beautiful scenery, while summer allows for longer days. Even in winter, many routes remain accessible, though some unpaved or hilly sections might require more caution.
Yes, many routes around Cosmeston Lakes are designed as loops, allowing you to start and finish in the same location. For example, the Penarth Pier & Pavilion – Cardiff Bay Barrage loop from Penarth offers coastal views, while the Cosmeston Lakes Nature Reserve – Barry Dock Office loop from Penarth takes you past the nature reserve and towards Barry.
Road cycling routes in this area often feature dramatic coastal scenery, rolling green landscapes, and views of the two main lakes at Cosmeston, which were originally flooded limestone quarries. You'll also encounter diverse habitats including woodlands, meadows, and reedbeds, which are home to various bird species.
Absolutely. Many routes incorporate historical sites. For instance, the Dinas Powys Castle – Cosmeston Medieval Village loop from Penarth leads you past the reconstructed 14th-century Cosmeston Medieval Village. Other routes might pass by landmarks like the St Lythans Burial Chamber, offering a glimpse into the region's past.
Yes, there are numerous easy routes perfect for families and beginners. While Cosmeston Lakes itself has flat, easy-to-cycle gravel paths, the wider network includes dedicated cycle paths and quiet country lanes suitable for gentle excursions. The Dinas Powys Castle – Cosmeston Medieval Village loop from Penarth is an easy 9.8-mile route that is often completed in under an hour.
Cosmeston Lakes Country Park itself offers parking facilities. Many starting points for routes in nearby towns like Penarth also have public parking available. It's advisable to check local parking information for specific starting locations.
Yes, many routes connect to towns and villages where you can find cafes and pubs. For example, the Coffee Lounge at Bayscape – St Lythans Burial Chamber loop from Dingle Road suggests a coffee stop. Cosmeston Lakes Country Park also has a cafe for refreshments, and nearby Penarth offers various dining options.
Yes, the area is reasonably accessible by public transport. Cosmeston Lakes is situated near towns like Penarth and Barry, which have train stations and bus services connecting to wider networks. This allows cyclists to reach starting points for many routes without needing a car.
The area is highly rated by the komoot community, with an average score of 4.3 stars. Reviewers often praise the diverse scenery, which includes coastal views, rolling green landscapes, and the tranquil lakes. The variety of routes, from easy loops to more demanding journeys, is also frequently highlighted as a major draw.
Yes, the region is known for its dramatic coastal scenery. Many routes integrate with the National Cycle Network Route 88 (NCN88), a proposed coastal route. The Penarth Pier & Pavilion – Cardiff Bay Barrage loop from Penarth is a prime example, offering excellent coastal vistas and connections to Cardiff Bay.


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