Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Hiking trails & Routes
United Kingdom
Wales
South Wales
Rhondda Cynon Taf
Maerdy

Rhondda Fach and Lluest-wen Reservoir Loop

Moderate

4.5

(2)

17

hikers

Rhondda Fach and Lluest-wen Reservoir Loop

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

A

Start point

Parking

Get Directions

1

7.03 km

Lluest-wen Reservoir North Shore Trail

Highlight • Trail

Lovely views along the North shore of the Lluest-wen Reservoir at the top of the Rhondda Fach Valley.

Tip by

2

9.09 km

The climb towards Bryn Llechwenddiddos and Bryn Gelli rewards you with great views of the reservoir.

Tip by

3

9.59 km

Lluest-wen Reservoir Dam Wall

Highlight • Structure

Lluest-wen Reservoir was constructed in 1898, but came to national attention in 1969 when a major leak caused an evacuation of residents down-valley while emergency repair work was carried out. …

Tip by

B

13.5 km

End point

Parking

Loading

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

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (470 m)

Lowest point (280 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Tuesday 19 May

13°C

9°C

44 %

Additional weather tips

Max wind speed: 28.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Frequently Asked Questions

What is the overall difficulty of the Rhondda Fach and Lluest-wen Reservoir Loop?

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'.

How long does it take to complete this hike?

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).

What is the terrain like on the Rhondda Fach and Lluest-wen Reservoir Loop?

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.

What can I see along the route?

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.

Are there any historical features or landmarks along the trail?

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.

What is the best time of year to visit the Rhondda Fach and Lluest-wen Reservoir Loop?

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.

Is the Rhondda Fach and Lluest-wen Reservoir Loop dog-friendly?

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.

Do I need a permit or pay an entrance fee for this trail?

No, there are no permits or entrance fees required to hike the Rhondda Fach and Lluest-wen Reservoir Loop.

Is there parking available for 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.

Does the trail intersect other well-known paths?

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.

Are there any amenities like cafes or pubs nearby?

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.

Nearby routes

Moderate

4.8

4,753

Pen y Fan and Corn Du Circular Walk

02:44h

7.56km

450m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy