4.7
(3)
702
runners
19
runs
Jogging routes around Ganllwyd are set within Eryri (Snowdonia) National Park, offering a diverse landscape for runners. The region features ancient oak woodlands, steep gorges, and cascading waterfalls, notably within Coed Ganllwyd National Nature Reserve. The River Gamlan flows through the area, contributing to the waterside scenery, while access to broader mountainous terrain and the Mawddach Estuary provides varied running surfaces and challenges.
Last updated: June 23, 2026
174
runners
14.3km
01:43
290m
300m
Moderate run. Good fitness required. Mostly accessible paths. Some sure footedness required.
4.0
(1)
103
runners
7.70km
00:51
170m
170m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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93
runners
Hard run. Very good fitness required. Mostly accessible paths. Some sure footedness required.
71
runners
38.4km
04:40
1,040m
1,040m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
32
runners
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Ganllwyd
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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 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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A perfect place to rest and take in the surroundings. In the heat it is a bit of a strenuous stretch, but then you have this beautiful view as a reward
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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)
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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)
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Rhaeadr Ddu (Black Falls in English) is a beautiful waterfall of 20 meters that falls over 2 steps. The name Black Falls is derived from the black stone over which the waterfall falls. From Ganllwyd it is a short walk through the Coed Ganllwyd National Nature Reserve, at the Coed-y-Brenin Forest, to the Rhaeadr Ddu waterfall in the River Afon Gamlan.
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Coed y Brenin was Britain's first purpose-built mountain biking center and it remains one of the sport's top destinations. Eight purpose-built mountain bike trails start at the visitor center and range from easy trails for families and beginners to technical trails for experienced mountain bikers. Other facilities for mountain bikers include a bike shop and a skills room where you can develop your riding techniques. The visitor center is also the starting point for walking and running trails through the Coed y Brenin Forest Park, as well as orienteering courses and geocaching. Two of the walking routes are suitable for visitors who use an off-road mobility scooter. There are also children's play areas, a café and plenty of picnic tables. (https://naturalresources.wales/days-out/places-to-visit/north-west-wales/coed-y-brenin-visitor-centre/?lang=en)
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The running routes around Ganllwyd offer a diverse range of terrain. You'll encounter ancient oak woodlands, steep gorges, and areas with cascading waterfalls. The paths can vary from tarmac to grassy sections, which may be muddy, and rocky slopes, providing a mix of surfaces and challenges for runners. The region is nestled within Eryri (Snowdonia) National Park, so you can expect varied and scenic landscapes.
While many routes in Ganllwyd are moderate to difficult, there are options for various ability levels. For example, the Tarw Du Trail Entrance – Coed y Brenin Visitor Centre loop from Afon Mawddach is a moderate route that offers a good experience without extreme difficulty. The Dolmelynllyn Estate also features color-coded walking trails that can be combined for flexible, less demanding jogging options.
Komoot features over 15 running routes around Ganllwyd, ranging from moderate to difficult. These trails allow you to explore the diverse landscapes of Eryri (Snowdonia) National Park, from woodlands to waterfalls.
Yes, Ganllwyd is renowned for its waterfalls. The Coed y Brenin Visitor Centre – Pistyll Cain Waterfall loop from Afon Mawddach leads directly to the impressive Pistyll Cain Waterfall. Additionally, the Coed Ganllwyd National Nature Reserve is home to the dramatic Rhaeadr Ddu (Black Falls), which are accessible via several viewpoints and popular jogging loops.
While jogging near Ganllwyd, you can experience a wealth of natural beauty. The area is rich in ancient oak woodlands, the picturesque River Gamlan, and the stunning waterfalls of Coed Ganllwyd National Nature Reserve. You might also catch glimpses of the broader mountainous landscape of Eryri (Snowdonia) National Park, including distant views of peaks like Penygadair summit, Cadair Idris, or serene spots like the Cregennan Lakes.
Many of the trails around Ganllwyd, especially those within the Dolmelynllyn Estate, offer varied options that can be suitable for families. While some routes can be challenging, there are easier sections and color-coded paths that allow for a more relaxed pace, making them enjoyable for families looking to jog or walk together amidst nature.
Generally, dogs are welcome on many public footpaths and trails in Eryri (Snowdonia) National Park, including those around Ganllwyd. However, it's always best to keep dogs on a lead, especially near livestock or in nature reserves like Coed Ganllwyd, to protect wildlife and ensure their safety. Please check specific signage for any restrictions on individual routes or estates.
Yes, many of the running routes in Ganllwyd are designed as circular loops, allowing you to start and finish in the same location. For instance, the Adam and Eve loop from Afon Mawddach is a popular circular option, and the Coed Ganllwyd Waterfalls loop is another well-known circular trail.
The running routes in Ganllwyd are highly rated by the komoot community, with an average score of 4.7 stars. Runners often praise the stunning natural beauty, the variety of terrain, and the opportunity to explore ancient woodlands and impressive waterfalls. The peaceful atmosphere and well-maintained trails are frequently highlighted as key attractions.
Yes, parking is generally available at key access points for the running trails. For example, the Coed y Brenin Forest Park, which hosts several popular running routes like the Beast of Brenin Trail, has dedicated visitor centers with parking facilities. The Dolmelynllyn Estate also provides parking for access to its trails.
Ganllwyd offers beautiful running conditions throughout much of the year. Spring and autumn provide vibrant colors and pleasant temperatures, making them ideal. Summer is also popular, though trails can be busier. Winter running is possible, but be prepared for potentially muddy paths and colder, wetter conditions, especially in the higher elevations of Eryri (Snowdonia) National Park.
For those seeking longer distances, Ganllwyd offers challenging routes that can be combined or extended. The Bridge Over the Afon Mawddach – Coed y Brenin Visitor Centre loop from Ganllwyd is a difficult route spanning nearly 38 km, providing a significant endurance challenge with substantial elevation gain through the scenic landscape.


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