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Hiking trails & Routes
United Kingdom
Wales
South Wales
Caerphilly

Caerphilly Mountain and Rhymney Ridgeway Loop

Moderate

4.4

(17)

73

hikers

Caerphilly Mountain and Rhymney Ridgeway Loop

02:14

7.78km

190m

Hiking

Hike the moderate 4.8-mile Caerphilly Mountain and Rhymney Ridgeway Loop for panoramic views, woodlands, and historical sites.

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

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1

1.01 km

Caerphilly Mountain Summit

Highlight • Viewpoint

Great little view point with a nearby cafe and large car park. Top spot.

Tip by

2

4.68 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

3

5.20 km

Winding Forest Trail

Highlight • Trail

4

5.80 km

Wern Ddu Clay Pit Nature Reserve

Highlight • Historical Site

Wern Ddu is an SSSI, the quarry workings being around 150 years old and leaving exposed geology that is a little bit older (estimated 300 million years previous).

Tip by

B

7.78 km

End point

Parking

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Way Types & Surfaces

Way Types

4.42 km

1.27 km

1.15 km

638 m

197 m

< 100 m

< 100 m

Surfaces

2.64 km

1.83 km

1.51 km

1.19 km

362 m

245 m

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Elevation

Elevation

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

Highest point (260 m)

Lowest point (150 m)

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Weather

Powered by Foreca

Thursday 7 May

17°C

8°C

35 %

Additional weather tips

Max wind speed: 9.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

How long does it take to hike the Caerphilly Mountain and Rhymney Ridgeway Loop?

This loop is approximately 7.8 kilometers (4.8 miles) long and typically takes around 2 hours and 14 minutes to complete, depending on your pace and how often you stop to enjoy the views.

What is the difficulty level of this hike?

The Caerphilly Mountain and Rhymney Ridgeway Loop is rated as moderate. It involves some steep sections and varied terrain, including woodlands and open grassland, making it suitable for hikers with a reasonable level of fitness.

What kind of terrain can I expect on the trail?

The trail features a diverse landscape. You'll encounter quiet countryside paths, lanes, and steep beech woodlands. There are also sections of heathland and open grassland. Expect both hard surfaces and some steep, potentially uneven, parts.

Is the Caerphilly Mountain and Rhymney Ridgeway Loop dog-friendly?

Yes, this trail is generally dog-friendly. However, as it passes through varied landscapes including open areas and potentially near livestock, it's always best to keep dogs on a leash, especially around wildlife or farm animals.

What are the main points of interest along the route?

You'll pass several interesting spots, including the Caerphilly Mountain Summit, which offers great views. Other notable features include Cefn Onn Quarry, a Winding Forest Trail, and the Wern Ddu Clay Pit Nature Reserve. The area is also rich in historical and industrial archaeology.

What is the best time of year to hike this loop?

Spring and autumn are often ideal for hiking this loop, offering pleasant temperatures and beautiful scenery with changing foliage. Summer can also be great, but be prepared for warmer weather. Winter hikes are possible but require appropriate gear for potentially muddy or icy conditions.

Where can I park for the Caerphilly Mountain and Rhymney Ridgeway Loop?

The trail starts and ends near Caerphilly. While specific parking details aren't provided, Caerphilly is accessible by public transport, and there are likely local parking options available in the vicinity of the trailhead.

Are there any permits or entrance fees required for this trail?

No, there are no permits or entrance fees required to hike the Caerphilly Mountain and Rhymney Ridgeway Loop. It is freely accessible to the public.

What wildlife might I see on the trail?

The diverse habitats along the route, including woodlands and open moorland, support various wildlife. Keep an eye out for birds like red kites and skylarks, as well as mammals such as foxes and badgers.

Does this trail connect with other walking routes?

Yes, this loop incorporates sections of other well-known paths. Approximately 51% of the route follows the Rhymney Valley Ridgeway Walk, and about 38% overlaps with the Cambrian Way. A smaller portion (5%) also uses the Heol Hir trail.

What should I bring for this hike?

Given the moderate difficulty and varied terrain, it's essential to wear proper hiking boots and weather-appropriate clothing. Always carry sufficient water and snacks. Due to potentially tricky navigation in some parts, having offline maps on your phone or a GPS device is highly recommended.

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