Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: November 12, 2025

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Waypoints

Start point

Bus stop

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762 m

Beach

1.15 km

Llwyn-on Reservoir

Highlight • Forest

Zoe has given out a lot of the history of the dam. Let's just add a bit of local information to say that this is a hidden gem of a …

Tip by

2.88 km

Garwnant Visitor Centre

Highlight • Rest Area

Brecon Beacons visitor centre with plenty of parking, a children’s play area, cafe.

Tip by

7.61 km

View of Llwyn-on Reservoir from the west bank

Highlight • Lake

9.42 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 …

Tip by

9.55 km

Llwyn-on Reservoir Dam Tower

Highlight • Viewpoint

Amazing views especially at night with a bright torch

Tip by

9.92 km

End point

Bus stop

Way Types & Surfaces

Way Types

3.71 km

2.71 km

2.36 km

1.05 km

< 100 m

Surfaces

3.33 km

2.34 km

2.23 km

1.17 km

743 m

111 m

Elevation

Highest point (350 m)

Lowest point (260 m)

Weather

Today

Monday 24 November

7°C

3°C

100 %

If you start your activity now...

Max wind speed: 13.0 km/h

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Llwyn-on Reservoir – Llwyn-on Reservoir Dam loop from Llwyn-onn

Llwyn-on Reservoir

Garwnant Visitor Centre

View of Llwyn-on Reservoir from the west bank

Llwyn-on Reservoir Dam

Llwyn-on Reservoir Dam Tower

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