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United Kingdom
Wales
South Wales
Ceredigion

Tywi Forest

The best running trails around Tywi Forest

4.3

(3)

215

runners

24

runs

Jogging routes around Tywi Forest traverse a varied landscape of dense conifer plantations, expansive open moorland, and valleys shaped by the River Tywi. The region features modest hills and numerous forestry tracks, providing diverse running surfaces for all abilities. A central feature is the Llyn Brianne reservoir, offering views from various points. This combination of natural features creates a dynamic environment for running.

Best jogging routes around Tywi Forest

  • The most popular jogging route is Llyn Brianne Dam – Llyn…

Last updated: June 20, 2026

4

runners

#1.

Llyn Brianne Dam – Llyn Brianne Dam Crossing loop from River Towy

11.7km

01:20

270m

270m

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 paved surfaces. Suitable for all skill levels.

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

Hard

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
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Popular around Tywi Forest

O Fon i Fynwy — Exploring Wales on foot from top to bottom

MTB Trails around Tywi Forest

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Hiking around Tywi Forest

Cycling around Tywi Forest

Gravel biking around Tywi Forest

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O Fon i Fynwy — Exploring Wales on foot from top to bottom

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Tips from the Community

Steve Haskew
April 9, 2026, Singletrack Through Cambrian Mountains

Mostly rideable downhill on a gravel bike if you're confident, but fairly boggy at the top. Uphill would be significant amounts of hike-a-bike for all but the most capable!

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Andy Bryant
February 4, 2025, Llyn Brianne Dam

A short climb up from the road brings you to the Dam and carpark, there is no access over the Dam itself. But you do get a good view over the spillway and valley below.

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Built in 1913 the Rhandirmwyn Bridge links the two sides of the Towy valley by this rivetted girder road bridge. On the southern side you'll find the Towy Bridge Inn, a lovely riverside pub.

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THE TALE OF THE WELSH “ROBIN HOOD” Known as Twm Siôn Cati Twm Siôn Cati is a historically known figure in Welsh folklore. A tale recounted by Meyrick recalls how Twm was asked by a poor man to steal a pitcher for him. They went together to a merchant where Twm started belittling the man's wares. Having told his friend secretly to take the pitcher of his choice, Twm distracted the merchant by telling him there was a hole in one of the pitchers, which the man denied. Twm desired him to put his hand in the pitcher to test it and the man still denied there was a hole. Twm then asked him how, if there was no hole, could he have put his hand inside? By this time his friend had disappeared with his pitcher, undetected. A tale from Prichard's book involves an occasion when Twm is staying in an inn overnight and realises other people are planning to rob him the following day after he sets off. He has a large sum of money with him. The following morning he behaves as though his money is in the pack-saddle of his horse. When the highwayman catches up, Twm drops the saddle in the middle of a pool. The highwayman wades into the pool to fetch it, Twm takes the opportunity to make off with the highwayman's horse. A complication arises because the horse responds to the voice of the highwayman crying "Stop!" Luckily Twm, in terror, happens to shout a word which makes the horse gallop on again, and he is conveyed to safety. Another tale recounts how Twm waylaid a rich squire, who was accompanied by his daughter, Twm was so smitten with her that he returned her jewellery to her and attempted to woo her, against her father's opposition and, initially, her own. One full moon shortly after the robbery, he crept to her window, roused her from sleep, caught her hand at the window and kissed it, refusing to let her go until she promised to marry him. She wouldn't promise so Twm drew his dagger, drew blood on her wrist and threatened to sever her hand unless she assented to marriage forthwith. She agreed to marry him and she kept her hand. Their marriage followed soon after, despite her father's views and the directness of Twm's courtship methods. The girl was supposedly the widow of the sheriff of Carmarthen. Through this marriage Twm is supposed to have gained respectability, eventually becoming a justice of the peace, sitting in judgement on others, a position he held until his death aged 79.

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A beautiful,quiet and rugged place easily explored on gravel bike. There are a group of 6 pools/reservoirs, the largest being the source of the River Teifi.

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Largest man made lake in mid wales

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Adie
November 24, 2022, Llyn Teifi

Llyn Teifi, the largest of the group of 6 pools and reservoirs making up the Teifi Pools, and the actual source of the River Teifi. Beautiful location surrounded by upland moorland as far as you can see.

2

0

This attractive RSPB site has a circular footpath adjacent to a river with beautiful rock cascades and old mossy trees. It is also home to the Twm Sion Cati's cave. All worth a look off of the bike.

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Frequently Asked Questions

What kind of terrain can I expect on the running routes in Tywi Forest?

Tywi Forest offers a diverse running experience, featuring extensive networks of forestry tracks and paths. You'll encounter dense conifer forests, open moorland, and river valleys carved by the River Tywi. The terrain varies from wider gravel tracks to narrower paths through woodlands, sometimes alongside rivers and over stepping stones. There are also rolling hills with elevations up to 500 meters, providing opportunities for varied intensity.

How many running routes are available in Tywi Forest?

There are over 20 running routes available in Tywi Forest, catering to various preferences and fitness levels. The komoot community has explored more than 200 tours in the area, highlighting its popularity among outdoor enthusiasts.

Are there routes suitable for different fitness levels in Tywi Forest?

Yes, Tywi Forest offers a range of running routes for different abilities. You'll find easy strolls, 15 moderate routes, and 8 more challenging options for experienced trail runners. For instance, the View of Strata Florida – Strata Florida Abbey Ruins loop from Pontrhydfendigaid is a difficult 20.9 km route, while the Caffi Sosban loop from Genau Cwm Irfon is a moderate 7.6 km option.

Are the running trails in Tywi Forest dog-friendly?

Generally, Tywi Forest is a great place to run with dogs, given its extensive network of natural trails. However, it's always recommended to keep dogs under close control, especially in areas where livestock might be present or during ground-nesting bird seasons. Please respect local signage and wildlife.

Are there family-friendly running routes in Tywi Forest?

While many routes are suitable for active families, some of the wider forestry tracks offer easier, less technical surfaces that are ideal for family runs. The varied terrain ensures that you can find sections that are less challenging, allowing for an enjoyable outing with children. Always check the route details for distance and elevation to ensure it matches your family's capabilities.

What do other runners enjoy most about jogging in Tywi Forest?

The running routes in Tywi Forest are highly rated by the komoot community, with an average score of 4.25 stars. Runners often praise the tranquility of the remote forest, the fresh air, and the diverse landscapes that make for a dynamic and engaging experience. The stunning Llyn Brianne reservoir views are also a significant draw.

Are there any circular running routes in Tywi Forest?

Yes, many of the running routes in Tywi Forest are circular, allowing you to start and finish at the same point. An example is the Llyn Brianne Dam – Llyn Brianne Dam Crossing loop from RSPB Gwenffrwd-Dinas, a moderate 10.6 km route offering continuous views of the reservoir.

What points of interest can I see along the running routes in Tywi Forest?

Beyond the natural beauty, you can discover several points of interest. The View of Strata Florida offers a glimpse of the historic Cistercian abbey ruins. For a challenge, some routes pass near the steep Devil's Staircase Climb (Abergwesyn). You might also encounter the Strata Florida River Crossing, adding an adventurous element.

Are there any challenging sections for advanced trail runners?

Absolutely. For those seeking a rigorous workout, areas like the Devil's Staircase Climb near Abergwesyn present steep gradients (up to 25-30%), challenging even experienced trail runners. The Strata Florida River Crossing can also add an adventurous element with its potentially wet and rutted trails, depending on conditions.

Can I find routes with reservoir views in Tywi Forest?

Yes, the stunning Llyn Brianne reservoir is a central feature of Tywi Forest, and many running routes offer picturesque views of the water and surrounding forest. The Llyn Brianne Dam – Llyn Brianne Dam Crossing loop from Cefn Isaf is a popular moderate route that provides continuous views of the reservoir and its dam.

Are there routes that lead through upland lakes?

Yes, some routes will take you through the beautiful upland lake areas. For example, the Llyn Egnant – Teifi Pools loop from Pontrhydfendigaid is a difficult 16.9 km trail that leads through these scenic landscapes and forest.

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