Bwlch Cerrig Duon Pass – River Tawe Source loop from Stargazers retreat

Bwlch Cerrig Duon Pass – River Tawe Source loop from Stargazers retreat

Moderate

riders

Bwlch Cerrig Duon Pass – River Tawe Source loop from Stargazers retreat

01:48

33.1km

600m

Road cycling

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

Last updated: August 21, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 5.93 km for 220 m

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1.57 km

View of the Central Beacons from the Cattle Grid, Bannau Brycheiniog National Park

Highlight (Segment) • Trail

One of those mountain passes that's so remote they're usually reserved for those venturing off road. A narrow single track lane means you too can enjoy it on your skinny …

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4.73 km

Bwlch Cerrig Duon Pass

Highlight • Mountain Pass

A completely unassuming road that isn't wide or busy enough to warrant road markings but offers up one of the best (and quietest) views of the Western Brecon Beacons or …

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6.03 km

River Tawe Source

Highlight • Natural

The River Tawe begins its journey at Llyn y Fan Fawr, which collects the run off from Fan Brycheiniog. It's just a short uphill walk from here to reach the …

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6.44 km

The International Welsh Rarebit Centre

Highlight • Restaurant

Cafe/Restaurant/Artspace - a great spot for a coffee or food.

tripadvisor.co.uk/Restaurant_Review-g3853922-d12604777-Reviews-The_International_Welsh_Rarebit_Centre-Defynnog_Brecon_Beacons_National_Park_Wa.html?m=19905

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24.9 km

Ancient Yew Tree in Cemetery

Highlight • Natural Monument

The Defynnog Yew might once have been used for gatherings and meetings. These were known in Wales as 'Cantrefi' / 'Hundreds'. 'Cantref Mawr' became the 'Hundred of Defynnog' and was …

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25.0 km

Although Defynnog lost local prominence as the nearby Sennybridge became more developed, the church boasts some extraordinary features. It contains a stone with ancient Ogham inscriptions (an ancient British Alphabet) …

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