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Running trails & routes

The Vale Of Grwyney

Pen y Gadair Fawr Summit Cairn – Church of St Issui, Partrishow loop from Llanbedr

Running trails & routes

The Vale Of Grwyney

Pen y Gadair Fawr Summit Cairn – Church of St Issui, Partrishow loop from Llanbedr

Hard

5.0

(1)

70

runners

Pen y Gadair Fawr Summit Cairn – Church of St Issui, Partrishow loop from Llanbedr

03:52

30.5km

1,140m

Running

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 12, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Bannau Brycheiniog National Park

Waypoints

A

Start point

Parking

Get Directions

1

9.22 km

Pen Twyn Mawr

Highlight • Viewpoint

Pen Twyn Mawr is a top of Pen y Gadair Fawr in the Black Mountains in south-eastern Wales. It lies on one of the many south ridges of Waun Fach. …

Tip by

2

11.7 km

Pen y Gadair Fawr Summit Cairn

Highlight • Viewpoint

In terms of height, Pen y Gadair Fawr plays second fiddle only to Waun Fach as the Black Mountains' second highest summit. However, where Waun Fach's top is broad and …

Tip by

3

24.0 km

Church of St Issui, Partrishow

Highlight • Religious Site

Nestled in the valley of the Grwyne Fawr, this remarkable church originates from 1060 and is a Grade I-listed building. Much of the current building was built in the 14th …

Tip by

26.3 km

Crug Mawr

Peak

5

26.7 km

Crug Mawr

Highlight • Viewpoint

Crug Mawr has a trig point at 1,804 feet (550 m) and stands at the southern end of the long ridgeline down from Waun Fach. It's on the Beacons Way …

Tip by

B

30.5 km

End point

Parking

Way Types & Surfaces

Way Types

20.9 km

5.13 km

2.99 km

1.44 km

< 100 m

< 100 m

Surfaces

10.1 km

9.92 km

4.84 km

4.41 km

1.02 km

265 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 (780 m)

Lowest point (160 m)

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Weather

Powered by Foreca

Saturday 5 September

22°C

11°C

0 %

Additional weather tips

Max wind speed: 22.0 km/h

to get more detailed weather forecasts along your route

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