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Llwyn-on Reservoir Dam – Llwyn-on Reservoir loop from Forest Visitor Centre

Routes

Hiking trails & Routes

Llwyn-on Reservoir Dam – Llwyn-on Reservoir loop from Forest Visitor Centre

Moderate

4.6

(14)

hikers

Llwyn-on Reservoir Dam – Llwyn-on Reservoir loop from Forest Visitor Centre

02:31

9.19km

140m

Hiking

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: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Bus stop

Get Directions

475 m

Garwnant Visitor Centre

Highlight • Rest Area

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

Tip by

746 m

Garwnant Reservoir and Dam

Highlight • Lake

6.47 km

Llwyn Onn Reservoir

Highlight • Structure

Smaller reservoir than others in the area, but with stunning landscape great off road paths to keep you away from the A470

Tip by

6.64 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

6.69 km

Garwnant Forest and Lake

Highlight • Forest

6.77 km

Llwyn-on Reservoir Dam Tower

Highlight • Viewpoint

Amazing views especially at night with a bright torch

Tip by

7.29 km

Beach

7.68 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

9.19 km

End point

Bus stop

Way Types & Surfaces

Way Types

5.38 km

2.73 km

689 m

273 m

114 m

Surfaces

3.54 km

2.36 km

2.21 km

453 m

350 m

273 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (380 m)

Lowest point (260 m)

Weather

Wednesday 6 May

13°C

4°C

39 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Llwyn-on Reservoir Dam – Llwyn-on Reservoir loop from Forest Visitor Centre

Garwnant Visitor Centre

Garwnant Reservoir and Dam

Llwyn Onn Reservoir

Llwyn-on Reservoir Dam

Garwnant Forest and Lake

Llwyn-on Reservoir Dam Tower

Llwyn-on Reservoir

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