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Bedwas Trethomas & Machen

Coed Cefn-onn Woodland Path – Cefn Onn Quarry loop from Machen

Routes

Hiking trails & Routes

United Kingdom

Wales

South Wales

Bedwas Trethomas & Machen

Coed Cefn-onn Woodland Path – Cefn Onn Quarry loop from Machen

Moderate

hikers

Coed Cefn-onn Woodland Path – Cefn Onn Quarry loop from Machen

04:23

15.6km

320m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: April 18, 2026

Waypoints

Start point

Parking

Get Directions

53 m

Ruperra Castle

Highlight • Castle

Ruperra Castle was built in 1626 by the Steward to the Earl of Pembroke, Sir Thomas Morgan. It's actually a mock castle – a residence with a castle-like appearance rather …

Tip by

4.36 km

Coed y Squire

Forest

7.10 km

This forested ridge sits amongst the area of woodlands to the south east of Caerphilly. Both the Cambrian Ridgeway and the Rhymney Valley Ridgeway Walk traverse the ridge and the bridleway is particularly beautiful and vibrant in summer.

Tip by

8.54 km

Cefn Onn

Highlight • Forest

9.03 km

Cefn Onn Quarry

Highlight • Structure

Cefn Onn Quarry is a former slate quarry in Cardiff. It is situated next to Coed Tranch-yr-Hebog and Wern Ddu forests. Enjoy some lovely views from here over the surrounding Vale of Glamorgan and nearby towns.

Tip by

13.3 km

Copi Gwynthi

Forest

15.6 km

End point

Parking

Way Types & Surfaces

Way Types

6.03 km

4.45 km

2.44 km

1.71 km

938 m

Surfaces

7.36 km

2.35 km

2.15 km

1.75 km

1.48 km

470 m

Elevation

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

Highest point (250 m)

Lowest point (50 m)

Weather

Friday 29 May

22°C

9°C

0 %

Additional weather tips

Max wind speed: 15.0 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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Coed Cefn-onn Woodland Path – Cefn Onn Quarry loop from Machen

Badger and Robin Mural

Ruperra Castle