Narrow Stone Tunnel and Steps – Clydach Gorge Viaduct loop from Brynmawr
Narrow Stone Tunnel and Steps – Clydach Gorge Viaduct loop from Brynmawr
4.2
(5)
15
hikers
Narrow Stone Tunnel and Steps – Clydach Gorge Viaduct loop from Brynmawr
02:42
9.27km
230m
Hiking
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.
Last updated: July 16, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Cwm Clydach National Nature Reserve
Waypoints
Start point
Bus stop
Get Directions
1.89 km
Coed Fedw-ddu
Forest
2.74 km
Disused Railway Tunnel, Bannau Brycheiniog National Park
Highlight • Structure
Tip by
2.87 km
Waterfall in Bannau Brycheiniog National Park
Highlight • Waterfall
3.50 km
Llanelli Quarry
Highlight • Historical Site
4.27 km
Brick Wall in Cliff Face
Highlight • Structure
4.65 km
Narrow Stone Tunnel and Steps
Highlight • Historical Site
Tip by
4.69 km
Clydach Gorge Viaduct
Highlight • Bridge
5.24 km
Old Mining Tunnel Entrance
Highlight • Historical Site
9.27 km
End point
Bus stop
Way Types & Surfaces
Way Types
7.46 km
1.44 km
295 m
< 100 m
Surfaces
5.72 km
2.42 km
1.10 km
< 100 m
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Elevation
Highest point (350 m)
Lowest point (240 m)
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Weather
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Monday 20 July
26°C
9°C
-- %
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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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