Rhondda Fach and Lluest-wen Reservoir Loop
Rhondda Fach and Lluest-wen Reservoir Loop
4.5
(2)
17
hikers
03:44
13.5km
240m
Hiking
Hike the moderate 8.4-mile Rhondda Fach and Lluest-wen Reservoir Loop, featuring diverse terrain and historical landmarks.
Last updated: February 26, 2026
Waypoints
Start point
Parking
Get Directions
7.03 km
Highlight • Trail
Tip by
9.09 km
Highlight • Viewpoint
Tip by
9.59 km
Highlight • Structure
Tip by
13.5 km
End point
Parking
Way Types & Surfaces
Way Types
6.37 km
4.98 km
1.36 km
677 m
< 100 m
Surfaces
5.17 km
4.98 km
1.81 km
1.42 km
< 100 m
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Elevation
Highest point (470 m)
Lowest point (280 m)
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Weather
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Tuesday 19 May
13°C
9°C
44 %
Additional weather tips
Max wind speed: 28.0 km/h
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This route was planned by komoot.
This loop is generally rated as moderate. While initial sections offer well-maintained, largely flat paths suitable for families, the full route includes a short, steep climb to Lluest Wen Reservoir. Be prepared for varied terrain, including a particularly steep, grassy, rocky, and potentially muddy section known as 'Graze Lane'.
The Rhondda Fach and Lluest-wen Reservoir Loop typically takes around 3 hours and 44 minutes to complete, covering a distance of approximately 13.5 kilometers (8.4 miles).
The terrain is quite diverse. You'll encounter well-maintained paths, tarmac, concrete paths, and forestry gravel paths. There's a notable short, steep climb to reach the reservoir. A section called 'Graze Lane' is described as very steep, grassy, rocky, and can be muddy and uneven underfoot, requiring careful navigation.
You'll enjoy beautiful river and reservoir views, woodlands, grasslands, and small waterfalls. Highlights include the tranquil Lluest-wen Reservoir North Shore Trail, the scenic Climb from Bryn Llechwedd-ddu Reservoir Dam, and the historic Lluest-wen Reservoir Dam Wall. You'll also spot old colliery workings, the nineteenth-century Pont Lluest-Wen bridge, and the Castell Nos filter house.
Yes, the trail is rich in history. You'll start near the Maerdy Gateway memorial, commemorating the local coal mining community. Along the way, you can see the Castell Nos filter house (built 1884-1900) with remains of a medieval Welsh castle above it, and the picturesque Pont Lluest-Wen, a nineteenth-century humped-back bridge. The Lluest Wen Reservoir itself has a notable history, including a significant dam leak in 1969.
While beautiful year-round, be aware that the area around Lluest-wen Reservoir has a history of high rainfall. Spring and summer offer generally milder conditions, but always check the weather forecast. Some sections, like 'Graze Lane', can become very muddy and uneven after rain, making them more challenging.
Yes, the trail is popular with dog walkers. You may encounter other dogs and cyclists. Please ensure your dog is kept under control, especially around livestock or other trail users, and always clean up after your pet.
No, there are no permits or entrance fees required to hike the Rhondda Fach and Lluest-wen Reservoir Loop.
The trail typically starts near the Maerdy Gateway memorial. While specific parking details aren't provided, it's advisable to look for local parking options in Maerdy or designated trail parking areas nearby. Always check local signage for restrictions.
Yes, the route incorporates sections of several other paths, including the National Cycle Network Route 47, the Rhondda Fach Trail, and the Cychoedd-a-Dolenni Loops & Links.
The trail is located in the Rhondda Fach Valley. While the immediate reservoir area is tranquil, you may find cafes, pubs, and other amenities in nearby towns and villages like Maerdy, which is often a starting point for the loop.