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Hiking trails & Routes

Cefn Onn Quarry – Coed Tranch-yr-Hebog Quarry loop from Lisvane and Thornhill

Hiking trails & Routes

Cefn Onn Quarry – Coed Tranch-yr-Hebog Quarry loop from Lisvane and Thornhill

Easy

5.0

(3)

42

hikers

Cefn Onn Quarry – Coed Tranch-yr-Hebog Quarry loop from Lisvane and Thornhill

01:54

6.54km

180m

Hiking

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 18, 2026

Waypoints

A

Start point

Train Station

1

416 m

Cefn Onn Ridgeway Ascent

Highlight (Segment) • Climb

Good way up to top of ridgeway from Cefn Onn avoiding the park. Popular with walkers.

Tip by

2

2.53 km

View of Bristol from Purdown Quarry

Highlight (Segment) • Viewpoint

3

2.71 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

4

2.85 km

Coed Tranch-yr-Hebog Quarry

Highlight (Segment) • Structure

Not too difficult - just be careful as you are close to the quarry edge.

Tip by

5

3.13 km

Forest Trail

Highlight • Trail

Good terrain, easy to ride and flowing.

Tip by

6

6.00 km

Ash Coffee

Highlight • Cafe

Coffees and Pastries/cake await you - showing as only open Friday to Sunday 8am - 3 pm

Tip by

B

6.54 km

End point

Train Station

Way Types & Surfaces

Way Types

3.21 km

2.71 km

474 m

122 m

Surfaces

2.75 km

2.08 km

1.24 km

336 m

< 100 m

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Elevation

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

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Weather

Powered by Foreca

Thursday 8 October

16°C

8°C

84 %

Additional weather tips

Max wind speed: 32.0 km/h

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

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