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Llyn y Fan Fawr

Llyn y Fan Fawr

The best road cycling routes around Llyn y Fan Fawr

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Looking for the best road cycling routes around Llyn y Fan Fawr? Then browse our collection of rides around this beautiful lake in in Powys below — and discover more of on your next visit.

Last updated: November 19, 2025

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1. View of Carreg Cennen Castle – Carreg Cennen Castle loop from Llanddeusant

64.3km

03:47

1,230m

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

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2. Bwlch Bryn-Rhudd, Devil's Elbow & Glynneath Hill from Dan-yr-Ogof — Bannau Brycheiniog (Brecon Beacons) National Park

46.5km

02:31

830m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

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3. Craig-y-Nôs Country Park to Sennybridge via Bwlch Cerrig Duon — Brecon Beacons National Park

40.8km

02:05

650m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

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4. Bwlch Cerrig Duon Pass – Bwlch Bryn-Rhudd loop from Llanddeusant

33.3km

01:47

600m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

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5. Glanusk Services loop from Pen y Cae

22.9km

01:10

350m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

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The best road cycling routes around Llyn y Fan Fawr

1. View of Carreg Cennen Castle – Carreg Cennen Castle loop from Llanddeusant

2. Bwlch Bryn-Rhudd, Devil's Elbow & Glynneath Hill from Dan-yr-Ogof — Bannau Brycheiniog (Brecon Beacons) National Park

3. Craig-y-Nôs Country Park to Sennybridge via Bwlch Cerrig Duon — Brecon Beacons National Park

4. Bwlch Cerrig Duon Pass – Bwlch Bryn-Rhudd loop from Llanddeusant

5. Glanusk Services loop from Pen y Cae

Most popular routes around Llyn y Fan Fawr

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