Trerhy one
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By a Slow Ways Volunteer on 07 Apr 2021







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This is a Slow Ways route connecting Treharris and Rhymney.

Know of a better route? Share it here.

This is a Slow Ways route connecting Treharris and Rhymney.

Know of a better route? Share it here.


This route has been reviewed by 1 person.

This route has been flagged (1 times) for reasons relating to access.

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Not verified

Route status - Live

Reviews - 1

Average rating -

Is this route good enough? -  Maybe (1)

Problems reported -  Access (1)

Downloads - 1


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Geography information system (GIS) data

Total length

Maximum elevation

Minimum elevation

Start and end points

Grid Ref ST0986697095
Lat / Lon 51.66538° / -3.30464°
Easting / Northing 309,866E / 197,095N
What3Words waxer.harnessed.spaceship
Grid Ref SO1148507536
Lat / Lon 51.75949° / -3.28389°
Easting / Northing 311,485E / 207,536N
What3Words cactus.corrects.aside

Trerhy One's land is

Green urban 4.1%
Moors 8.1%
Natural grass 32.5%
Other agricultural land 14.3%
Pasture 10.5%
Urban 27.3%
Woods 3.1%

Data: Corine Land Cover (CLC) 2018


Paul Chilcott

21 Jul 2022

July 2022. Direction Treharris to Rhymney

This Slow Ways walk is full of great scenery, but it just needs a couple of tweaks to the routing to make it a 5-star route. It passes through 3 parks, all of which are on reclaimed mining sites.

After crossing the suspension bridge coming out of Treharris, the path goes a couple of miles through the Taff Bargoed Park, which is full of varied scenery, such as ponds, wetlands, reedbeds and woodlands, culminating in the renowned climbing centre. Crossing the road at the end of the park takes you on to the loops and links path into Bedlinog, where there are some interesting info panels on its history, notably the industrial riots in the 1930`s. There are some steep slopes going up through the village !

On leaving Bedlinog, you are straight into the beautiful Nant Llwynog Park, following the stream of the same name. I couldn`t find the planned path leading over the stream here, probably due to fallen trees or maybe it was just overgrown, so I followed the alternative path up the right hand side of the stream up to the lane. The path from the lane to go up the mountain (Pen Garnbugail) was very clear, but the path down the other side was not. The planned path was blocked by tied farm gates, so I took an alternative path southwards following the wall and then down through the fields, but after the initial pair of gates, there was no obvious path to follow and I ended up going through a soggy marshland (even after a prolonged dry spell with record high temperatures) and tumbling out at the bottom on the road at the entry to Cwm Darren Park.

The path now takes you across Cwm Darren Park and after crossing the river, it leads up through the forestry. There are lots of paths here, so care is needed to pick the right one. After the forestry section there are good views across the upper reaches of the two valleys (Nant Bargoed Rhymney and the main Rhymney Valleys). To finish off, there`s a fairly steep descent down into Pontlottyn and then an unremarkable walk along the path parallel with the main road into Rhymney.

Photo 1 - Footpath / Cycle path leaving Treharris (with local coal seam commemorations)
Photo 2 - Pond, Taff Bargoed Park
Photo 3 - Reedbeds, Taff Bargoed Park
Photo 4 - Bedlinog from the Loops & Links path
Photo 5 - Looking down the Taff Bargoed valley
Photo 6 - The path through Nant Llwynog Park near Bedlinog
Photo 7 - View back down the Taff Bargoed valley from Pen Garnbugail mountain.
Photo 8 - Fochriw from the mountain path.

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