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Running Trails
United Kingdom
Wales
North Wales
Gwynedd

Trawsfynydd

The best running trails around Trawsfynydd

4.7

(11)

1,501

runners

77

runs

Jogging around Trawsfynydd offers a diverse landscape for runners. The region is characterized by its large reservoir, Llyn Trawsfynydd, surrounded by a mix of open moorland, forested areas, and rolling hills. Trails often feature varied terrain, from lakeside paths to more challenging ascents into the foothills of the Rhinog mountains. This area provides opportunities for both gentle runs and more demanding long distance running trails, set within the broader Snowdonia National Park.

Best jogging routes around Trawsfynydd

  • The most popular…

Last updated: June 24, 2026

174

runners

#1.

Beast of Brenin Trail

14.3km

01:43

290m

300m

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

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Moderate

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

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

Hard

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

Hard

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

Hard
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Hiking Collection by

Alex Foxfield

Tips from the Community

Clive G
October 4, 2025, Rhinog Fach Summit

If you are walking from the west, this will be a blessed relief as the paths become clearer for a while.

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A set of double falls, upper and lower. Both are quite tricky to photograph, the upper falls being the more precarious as you have to look over an edge to see the full drop. The lower falls are easier as you can get a low Point of View and hence get the flow of the water past you. These falls are only a few hundred yards up a well marked and obvious path, large car park on the main road at the bottom of the roadway.

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The bridge is shut 😭

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The half-way point on the Minotaur mountain biking route at Coed y Brenin.

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I started the opposite way of the route, going to the summit of Y Garn the shortest way. It was better. Starting the long way around is too tidings even going down. Be prepared to get lost without Komoot and the path they show (it’s like a compass) because the paths are hardly visible in places. There is an old gold mine worth passing by. The views from Y Garn are well worth all the sweat.

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September 2023, the bridge was closed

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The reserve at Coed Ganllwyd includes a steep, wooded gorge with tall waterfalls. The main attraction for many is the spectacular Black Falls of Rhaeadr Ddu on the Afon Gamlan. The forest is part of a wider Site of Special Scientific Interest (SSSI) and is part of the Coedydd Derw a Safleoedd Ystlumod Meirion/Merionnydd Oak Woods and Bat Sites Special Area of Conservation (SAC). The wet climate that nourishes the falls also creates the humid conditions in the gorge, making it the richest place for mosses in northwestern Europe. The rocks and tree trunks are decorated with the green and gray growth of these simple plants. The trees largely escaped felling during two world wars and are an excellent example of the ancient oak forest of this part of Wales. (VisitMidWales)

Translated by Google

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Rhaeadr Du (Black Falls in English) is a 20 meter waterfall that plunges over 2 steps onto the fast flowing Afon Gamlan as it passes through the Coed Ganllwyd National Nature Reserve at the spectacular Coed-y-Brenin Forest or Forest of the Kings . At the waterfall, large stone steps lead to a kind of viewing platform that offers beautiful views of the falls. Visitors are advised to exercise caution as the area can be very slippery and dangerous in wet weather. (Snowdonia guide)

Translated by Google

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Frequently Asked Questions

How many running routes are available around Trawsfynydd?

There are over 80 running routes around Trawsfynydd, offering a wide range of options for different fitness levels and preferences. These include paths around the reservoir, through forests, and into the foothills of the Rhinog mountains.

Are there easy running routes suitable for beginners in Trawsfynydd?

Yes, Trawsfynydd offers a few easier running routes perfect for beginners or those looking for a gentle jog. These trails typically feature less elevation gain and smoother terrain, often found along the reservoir's edge or in less rugged forested areas.

Can I find challenging long-distance running trails in the Trawsfynydd area?

Absolutely. For experienced runners seeking a challenge, Trawsfynydd and its surrounding Snowdonia National Park offer several demanding routes. An example is the Rhinog Fawr & Gloyw Lyn loop from Cwm Bychan, which features rugged mountain terrain and significant elevation changes.

Are there any circular running routes around Trawsfynydd?

Yes, many of the running routes in Trawsfynydd are circular, allowing you to start and finish at the same point. The popular Around Llyn Trawsfynydd route is a great example, offering scenic views as you loop the reservoir.

What kind of scenery can I expect on the running trails in Trawsfynydd?

Runners in Trawsfynydd can enjoy diverse scenery, from the expansive waters of Llyn Trawsfynydd to dense forest trails and the dramatic foothills of the Rhinog mountains. Many routes offer panoramic views of the Snowdonia National Park landscape.

Are the running routes in Trawsfynydd suitable for families?

While some routes are more challenging, there are family-friendly options available, particularly those with gentler gradients and well-maintained paths. Look for routes around the reservoir or in designated forest areas that are less rugged.

Are dogs allowed on the running trails around Trawsfynydd?

Generally, dogs are welcome on most trails in the Trawsfynydd area, especially within Snowdonia National Park. However, it's crucial to keep them on a lead, particularly near livestock or during bird nesting seasons, and always clean up after them.

What are some interesting landmarks or attractions to see near the running routes?

The Trawsfynydd area is rich in natural beauty and historical sites. Along your runs, you might encounter stunning viewpoints like Moelwyn Bach or explore mountain passes such as Bwlch Drws Ardudwy. The region also features impressive peaks like Rhinog Fawr Summit Cairn.

Are there any running routes that feature waterfalls?

Yes, the wider area around Trawsfynydd offers routes that include waterfalls. For example, the Coed y Brenin Visitor Centre – Pistyll Cain Waterfall loop provides an opportunity to see the beautiful Pistyll Cain Waterfall.

What do other runners say about the trails in Trawsfynydd?

The running trails in Trawsfynydd are highly rated by the komoot community, with an average score of 4.7 stars. Runners often praise the diverse terrain, the stunning views of Llyn Trawsfynydd and the surrounding mountains, and the variety of routes available for all skill levels.

Is parking available near the running routes in Trawsfynydd?

Yes, there are various parking options available near the trailheads around Trawsfynydd, including designated car parks at popular starting points and visitor centers. Some smaller routes might have roadside parking, but it's always best to check specific route details beforehand.

Can I access Trawsfynydd's running trails using public transport?

While Trawsfynydd is primarily accessed by car, some local bus services operate in the wider Snowdonia National Park area. However, direct public transport links to specific trailheads can be limited, so planning your journey in advance is recommended.

What is the best season for running in Trawsfynydd?

Spring and autumn are often considered the best seasons for running in Trawsfynydd, offering pleasant temperatures, vibrant foliage, and fewer crowds. Summer can be warm, while winter runs can be beautiful but require appropriate gear for potentially wet and cold conditions.

Most popular routes around Trawsfynydd

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