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Routes
Running Trails
United Kingdom
Wales
South Wales
Rhondda Cynon Taf

St Gwynno Forest

The best running trails around St Gwynno Forest

4.6

(8)

1,628

runners

12

runs

Jogging around St Gwynno Forest offers diverse trails through varied woodland and significant elevation changes. The region features several reservoirs and waterfalls, providing scenic backdrops for running. Its terrain includes both paved paths and challenging climbs, catering to different fitness levels.

Best jogging routes around St Gwynno Forest

  • The most popular jogging route is Lluest-Wen Reservoir – Lluest-wen Reservoir Dam Wall loop from Maerdy, a 4.4 miles (7.0 km) trail that takes 47 minutes to complete. This route offers…

Last updated: July 6, 2026

10

runners

#1.

Lluest-Wen Reservoir – Lluest-wen Reservoir Dam Wall loop from Maerdy

7.03km

00:48

150m

150m

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Moderate

Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.

Hard
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Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.

Moderate

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.

Moderate
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Popular around St Gwynno Forest

Road Cycling Routes around St Gwynno Forest

Cycling around St Gwynno Forest

MTB Trails around St Gwynno Forest

Hiking around St Gwynno Forest

Gravel biking around St Gwynno Forest

Tips from the Community

Richard
April 18, 2026, Daerwynno Outdoor Centre and Caban Guto

Cracking Cafe open, Sat Sun and Wed year round.

0

0

The water here is stunning in the sunlight. A good place to take a few moments to rest the legs.

0

0

Cube 140
September 24, 2025, Llanwonno Forest Trail

cabin gito top cake and coffee open Wednesday and sunday

1

0

Finally open after Storm Dennis (I think) repairs.

0

0

OwainZ
July 22, 2024, Gravel Fireroad

New "gravel" been laid along part of this - tennis ball size gravel. Tough to ride on an MTB, might struggle on a gravel bike!

1

0

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. Back in 1929 the place set a maximum daily rainfall record for Wales, with 211mm of rain recorded. You have been warned!

2

0

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. Back in 1929 the place set a maximum daily rainfall record for Wales, with 211mm of rain recorded. You have been warned!

2

0

Frequently Asked Questions

How many running routes are available in St Gwynno Forest?

St Gwynno Forest offers over a dozen dedicated running routes, catering to various fitness levels. You'll find a mix of moderate and challenging trails to explore.

What kind of terrain can I expect on the running trails in St Gwynno Forest?

The running trails in St Gwynno Forest feature diverse terrain, from easy, paved paths to more challenging ascents and descents. You'll encounter varied woodland, gravel fire roads, and significant elevation changes, providing a good workout and diverse running conditions. Notable climbs include the Bryn Du and Blaenllechau areas.

Are there any running routes that feature waterfalls or reservoirs?

Yes, St Gwynno Forest is home to several picturesque natural features. You can enjoy routes that pass by the beautiful Pistyll Goleu waterfall, as well as various reservoirs. For example, the Nant Glydach Reservoir and Dam – Llanwonno Forest Trail loop from Tylorstown takes you through the scenic Nant Glydach Reservoir area, and the Lluest-Wen Reservoir – Lluest-wen Reservoir Dam Wall loop from Maerdy offers views of the Lluest-Wen Reservoir.

Are there any challenging running trails for experienced runners?

Absolutely. St Gwynno Forest provides several challenging routes for those seeking a more intense run. An example is the Gravel Fireroad – Llanwonno Forest Trail loop from Maerdy, a difficult 16.5-mile path that explores the varied and demanding terrain of Llanwonno Forest with significant elevation gain.

What interesting landmarks or viewpoints can I see along the running routes?

Beyond the natural beauty, you can discover several points of interest. The forest offers panoramic views from certain vantage points, including glimpses of the Brecon Beacons and even the Bristol Channel on clear days. Specific highlights include the Bryn Du Climb and Blaenllechau Climb, which provide excellent views. You can also find the historic St Gwynno Church, known for its medieval crosses and the grave of legendary runner Guto Nyth Brân.

Are the running trails in St Gwynno Forest dog-friendly?

Yes, St Gwynno Forest is generally dog-friendly, making it a great place to run with your canine companion. Many routes are suitable for dogs, but always ensure your dog is under control and check for any specific local signage regarding leash requirements, especially near livestock or sensitive wildlife areas.

Are there any circular running routes in the forest?

Yes, many of the running routes in St Gwynno Forest are designed as circular loops, allowing you to start and finish at the same point without retracing your steps. Examples include the Lluest-Wen Reservoir loop and the Nant Glydach Reservoir and Dam loop.

What do other runners enjoy most about jogging in St Gwynno Forest?

The running routes in St Gwynno Forest are highly rated by the komoot community, with an average score of 4.6 stars from numerous reviews. Runners often praise the diverse trails, the scenic beauty of the reservoirs and varied woodland, and the satisfying challenge provided by the elevation changes.

Is there public transport access to St Gwynno Forest for runners?

While specific public transport options can vary, St Gwynno Forest is accessible, and some routes start from towns like Maerdy and Tylorstown, which may have local bus services. It's advisable to check local transport schedules for the most up-to-date information when planning your visit.

Are there family-friendly running options in St Gwynno Forest?

Yes, St Gwynno Forest offers paths suitable for families, including easier, paved sections. While some routes are more challenging, there are options that can be enjoyed by those looking for a less strenuous run or walk with children. The diverse environment and picnic areas make it a pleasant destination for a family outing.

What is the best time of year to go running in St Gwynno Forest?

St Gwynno Forest offers a great running experience year-round due to its varied woodland. Spring brings lush greenery, summer provides pleasant shade, and autumn showcases beautiful foliage. Winter runs can be invigorating, but be mindful of potentially muddy or icy conditions on certain trails. Always check local weather forecasts before heading out.

Are there any other activities available in St Gwynno Forest besides running?

Yes, St Gwynno Forest is a hub for various outdoor pursuits. The Daerwynno Outdoor Centre facilitates activities like orienteering, climbing, canoeing, and wildlife studies. The forest's diverse trails are also popular for hiking and mountain biking, making it a versatile destination for outdoor enthusiasts.

Most popular routes around St Gwynno Forest

Road Cycling Routes around St Gwynno Forest

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