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Llyn Clywedog

The best running trails around Llyn Clywedog

61

runners

15

runs

Jogging around Llyn Clywedog offers routes through a landscape characterized by a large man-made reservoir, rolling hills, and extensive woodlands. The area is part of the Cambrian Mountains, featuring broad uplands of heath and grassland. The Clywedog Dam, one of the tallest concrete dams in the UK, is a prominent feature, and the region includes native woodlands like Hafren Forest.

Best jogging routes around Llyn Clywedog

  • The most popular jogging route is Running loop from Staylittle, a 3.3 miles (5.3 km) trail that takes about 38 minutes to complete, offering views of the surrounding hills.
  • Another top favourite among local runners is Hafren Cascades Boardwalk – Hafren Forest Boardwalk loop from Rhyd-y-benwch, a moderate 8.0 miles (12.8 km) path through Hafren Forest, featuring cascades and boardwalk sections.
  • Local runners also love the Running loop from Llanidloes, a 6.1 miles (9.9 km) trail leading through the countryside around the town, often completed in about 1 hour 6 minutes.
  • Jogging around Llyn Clywedog is defined by the reservoir's expanse, rolling hills of the Cambrian Mountains, and dense woodlands. The network offers options for different ability levels, from moderate runs to more challenging routes.
  • The guide includes highly-rated routes that showcase the best of the region's landscape. More than 50 runners have used komoot to explore Llyn Clywedog's varied terrain.

Last updated: July 4, 2026

4

runners

#1.

Running loop from Staylittle

5.33km

00:38

110m

110m

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

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Moderate

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

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

Moderate

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

Moderate

3

runners

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

Moderate
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Popular around Llyn Clywedog

Cycling around Llyn Clywedog

Road Cycling Routes around Llyn Clywedog

Hiking around Llyn Clywedog

MTB Trails around Llyn Clywedog

Gravel biking around Llyn Clywedog

Tips from the Community

Zoe Evans
February 2, 2026, Severn Break Its Neck Waterfall

Head from the carpark heading to the left side much easier to navigate today as there’s a new boardwalk in place that runs down the once was very boggy path now it’s all accessible as seen in pictures.

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Andy
October 7, 2024, Severn Break Its Neck

Some great gravel & MTB trails close by

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Running water for the toilets but no taps so no bottle refill. Understand there is a tap at the bunkhouse to the north.

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Awesome place to ride a gravel bike.

1

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Rhys-y-Benwch A fab picnic spot with toilets and picnic tables.

1

0

Frequently Asked Questions

How many running routes are available around Llyn Clywedog?

There are over 15 dedicated running routes around Llyn Clywedog, catering to various preferences. The majority are moderate in difficulty, with a few more challenging options for experienced runners.

What kind of terrain can I expect on the running trails?

The terrain around Llyn Clywedog is diverse, featuring reservoir-side paths, sections through dense forests like Hafren Forest, and open hilltops. You'll encounter rolling hills and winding valleys, with some routes offering mostly paved surfaces and others being more rugged.

Are there any running routes with notable natural features or landmarks?

Absolutely. Many routes offer stunning views of the impressive Clywedog Dam, Britain's tallest mass concrete dam. You can also explore trails through Hafren Forest, which features cascades and boardwalk sections, such as the Hafren Cascades Boardwalk – Hafren Forest Boardwalk loop from Rhyd-y-benwch. The area is also known for its wildlife, including red kites and buzzards, with ospreys occasionally spotted over the lake.

Are there any circular running routes around Llyn Clywedog?

Yes, there are several circular options. For instance, the Running loop from Staylittle offers a pleasant circular run with views of the surrounding hills. The long-distance Glyndŵr's Way National Trail also features a short circular walk from the dam viewing area, which can be adapted for a run.

Are the running trails around Llyn Clywedog suitable for families?

Many of the trails are suitable for families, especially those with mostly paved surfaces and moderate elevation. Routes like the Running loop from Staylittle are generally accessible and offer a good introduction to the area's beauty without being overly strenuous.

Can I bring my dog on the running trails?

Yes, Llyn Clywedog offers many dog-friendly trails. However, it's always advisable to keep dogs on a lead, especially in areas with livestock or ground-nesting birds, and to follow the Countryside Code.

Where can I park when visiting Llyn Clywedog for a run?

There are various parking areas available around Llyn Clywedog, particularly near popular trailheads and viewpoints like the Clywedog Dam. Specific parking information can often be found on individual route descriptions on komoot, or by checking local signage upon arrival.

What is the best time of year to go running in Llyn Clywedog?

Llyn Clywedog offers a beautiful running experience year-round. Spring brings fresh greenery and wildflowers, while autumn showcases stunning foliage. Summer provides longer daylight hours, and even winter runs can be rewarding with crisp air and unique views, though some trails might be muddier. Always check local weather conditions before heading out.

Are there any challenging running routes with significant elevation gain?

Yes, for more experienced runners seeking a challenge, there are routes with significant elevation changes. For example, the Cwmystwyth mines loop from Y Fan features over 260 meters of elevation gain, requiring good fitness and sure-footedness. The varied terrain of the Cambrian Mountains ensures options for all levels of endurance.

What can I see along the running routes besides the reservoir?

Beyond the reservoir, you can explore the remains of the Bryntail Lead Mines, a historical site offering a glimpse into the region's industrial past. The Glaslyn Nature Reserve provides additional natural beauty and trails. Many routes also offer panoramic views from prominent hills like Bryn y Fan, overlooking the lake and surrounding countryside.

Are there any running routes that go through forests?

Yes, Hafren Forest is a key feature of the area, offering a network of woodland trails perfect for forest running. The Hafren Cascades Boardwalk – Hafren Forest Boardwalk loop from Rhyd-y-benwch is a prime example, taking you deep into the forest with its unique boardwalk sections and cascades.

Most popular routes around Llyn Clywedog

Cycling around Llyn Clywedog

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