Waterfalls around Ganllwyd, a village in Eryri National Park (Snowdonia), are known for their natural beauty and serene woodland walks. The area's high rainfall and dense oak canopy contribute to a humid environment, supporting rich mosses and liverworts. This region offers a blend of natural features and historical intrigue, including remains of the Cefn Coch gold mine. Visitors can explore a variety of waterfalls set within ancient woodlands and gorges.
Last updated: May 2, 2026
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Popular around Ganllwyd
Hike Wales’ silent giants — Southern Eryri (Snowdonia)
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Cycling 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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In my opinion, a body of water enriches every tour. If it presents itself as spectacularly as it sounds, all the better!
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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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Waterfall on the Mawddach River (45 km long). This waterfall is known as "Rhaeadr Mawddach".
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Among the most popular waterfalls are Pistyll Cain Waterfall, known for its 65-foot drop into a large splash pool, and Rhaeadr Ddu (Black Falls) Waterfalls, which cascade over 60 feet of black stone within the Coed Ganllwyd National Nature Reserve. Visitors also appreciate Pistyll Gain (Rhaeadr Mawddach) Waterfall for its scenic beauty.
Yes, the area offers several family-friendly options. The Coed Ganllwyd National Nature Reserve, home to Rhaeadr Ddu (Black Falls) Waterfalls, features waymarked routes of varying lengths suitable for families. The walk to Rhaeadr Ddu itself is a circular waterside path along the River Gamlan.
Ganllwyd is rich in natural beauty. The high rainfall and dense oak canopy create a humid environment, making places like the Coed Ganllwyd National Nature Reserve one of the richest sites in Western Europe for mosses and liverworts. You'll also find ancient woodlands, gorges, and diverse wildlife, including rare species like the lesser horseshoe bat.
Visiting during spring or autumn is often recommended. In spring, wildlife is active, and in autumn, the forests display vibrant colors. The waterfalls are particularly impressive after rainfall, which is common in the region, ensuring a powerful flow.
Yes, some waterfalls offer spots for wild swimming. The Pistyll Cain Waterfall, for instance, tumbles into a large splash pool where swimming is possible. Similarly, Pistyll Gain (Rhaeadr Mawddach) Waterfall is also noted as a potential swim spot.
You'll find a variety of hiking trails, from easy paths to more demanding routes. For example, the walk to Pistyll Gwyn Waterfall offers a more remote experience across moorland and woodland. Many routes are available, including the 'Coed Ganllwyd Waterfalls – Tyddyn Gwladys Car Park loop' or the 'Pistyll Cain Waterfall – Tyddyn Gwladys Car Park loop'. You can find more details on these and other routes in the Waterfall hikes around Ganllwyd guide.
For a more remote and solitary experience, consider the walk to Pistyll Gwyn Waterfall in the Graigddu Woods. This route takes you across moorland and woodland, passing ruined forestry workers' cottages, with the dramatic Rhinog mountain range as a backdrop.
Beyond hiking, the area around Ganllwyd offers excellent opportunities for running and cycling. You can explore various running trails, such as the 'Beast of Brenin Trail', or enjoy cycling routes like the 'Coed y Brenin Visitor Centre – Dream Time Trail'. More information can be found in the Running Trails around Ganllwyd and Cycling around Ganllwyd guides.
Yes, the region has historical intrigue. Near Rhaeadr Ddu (Black Falls) Waterfalls, visitors can explore the remains of the Cefn Coch gold mine, adding a historical dimension to the natural exploration.
The Coed Ganllwyd National Nature Reserve is a peaceful, ancient woodland known for its exceptionally rich biodiversity. Due to the wet climate and humid conditions, it's considered one of the richest sites in North West Europe for mosses and liverworts. It's also home to the distinctive pied flycatcher in summer and other woodland birds and wildlife.
Yes, many of the waterfalls offer excellent viewpoints. For instance, Pistyll Cain Waterfall is itself a popular viewpoint. At Rhaeadr Ddu (Black Falls) Waterfalls, large stone steps lead to a viewing platform, offering beautiful perspectives of the cascades.


Happy to travel a little further afield? Then browse these guides for the best waterfalls around Ganllwyd: