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Bike touring routes & trails

3 Reservoirs loop: Talybont to Pontsticill to Llwyn-onn via Devil's Elbow — Brecon Beacons National Park

Routes

Bike touring routes & trails

3 Reservoirs loop: Talybont to Pontsticill to Llwyn-onn via Devil's Elbow — Brecon Beacons National Park

Hard

5.0

(2)

riders

3 Reservoirs loop: Talybont to Pontsticill to Llwyn-onn via Devil's Elbow — Brecon Beacons National Park

05:26

78.1km

1,090m

Cycling

Embark on a challenging touring bicycle adventure through the Brecon Beacons National Park with the 3 Reservoirs loop. This difficult 48.6-mile (78.1 km) route, designed to take around 5 hours and 26 minutes, features a significant 3578 feet (1091 metres) of elevation gain. You will cycle past the beautiful Talybont,…

Last updated: April 23, 2026

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Your route passes through protected areas

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Brecon Beacons National Park

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602 m

Brecon Canal Basin

Highlight • River

This is a beautiful canal basin forming the start of the Monmouth and Brecon Canal. It's a beautiful setting overlooked by Brecon Theatre, where there is a cafe/bistro. Meanwhile, on …

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13.4 km

Talybont Reservoir

Highlight (Segment) • Structure

A wonderful view across the water. Situated along the right hand side of the reservoir (looking up at it from the dam) there are two bird hides and a few small parking places.

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13.9 km

Talybont Reservoir Gravel Climb

Highlight (Segment) • Viewpoint

This gravelly climb is a great alternative to the road if you’re riding larger wheels. The trail itself is fine for road bikes with larger wheels or gravel bikes (I …

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25.6 km

Pontsticill Reservoir

Highlight • Structure

Built in 1927, the Pontsticill Reservoir is a large reservoir in the Brecon Beacons National Park that can hold 3400 million gallons (14,460 million liters) of water. The beautiful reservoir …

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32.1 km

Pontsarn Viaduct

Highlight • Historical Site

Good ride

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38.9 km

Llwyn-on Reservoir Dam

Highlight • Structure

Llwyn-on reservoir, built in 1926, covers 150 acres and is the largest of the three in the Taff Fawr Valleys area. Walking along the shore you can be immersed in …

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