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Mountain biking trails

Llwyn-on Reservoir Dam – Aberdare to Hirwaun Cycleway loop from Forest Visitor Centre

Routes

Mountain biking trails

Llwyn-on Reservoir Dam – Aberdare to Hirwaun Cycleway loop from Forest Visitor Centre

Moderate

4.0

(2)

riders

Llwyn-on Reservoir Dam – Aberdare to Hirwaun Cycleway loop from Forest Visitor Centre

02:37

34.2km

550m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 13, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

Start point

Bus stop

Get Directions

5.19 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

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5.37 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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7.53 km

Gravel Path in Bannau Brycheiniog National Park

Highlight • Trail

17.8 km

Brilliant strip of traffic-free cycleway that links Aberdare near the train station to Hirwaun. It's pretty much flat, although you'll need to look out for debris like leaves and sticks in the winter months.

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21.4 km

View of Ruins and Woodland in Bannau Brycheiniog National Park

Highlight (Segment) • Historical Site

Would be a good thing to have sturdy walking boots as it's quite loose under foot.

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23.8 km

Penderyn Distillery

Highlight • Structure

The Penderyn whisky distillery was launched in 2004. They produce several different single malts and other spirits in three sites in south Wales. You can visit this distillery and take …

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28.9 km

Cwm Cadlan Nature Reserve

Highlight • Viewpoint

The small road runs from Penderyn in the west over the hill and down to Llwyn-onn Reservoir in the east. It's a nice ride avoiding the busier A4059 to the north.

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33.7 km

Garwnant Visitor Centre

Highlight • Rest Area

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

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34.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

14.6 km

13.2 km

2.96 km

2.25 km

612 m

539 m

< 100 m

Surfaces

12.3 km

10.4 km

6.13 km

4.37 km

1.07 km

Elevation

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

Highest point (410 m)

Lowest point (150 m)

Weather

Sunday 17 May

11°C

4°C

90 %

Additional weather tips

Max wind speed: 20.0 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 – Aberdare to Hirwaun Cycleway loop from Forest Visitor Centre

Llwyn Onn Reservoir

Llwyn-on Reservoir Dam

Gravel Path in Bannau Brycheiniog National Park

Aberdare to Hirwaun Cycleway

View of Ruins and Woodland in Bannau Brycheiniog National Park

Penderyn Distillery

Cwm Cadlan Nature Reserve

Garwnant Visitor Centre

Nearby routes

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