Best waterfalls around Llanberis are found in a region characterized by its mountainous terrain, deep valleys, and historical industrial heritage. The area is situated within Snowdonia National Park, offering a landscape shaped by glacial activity and ancient slate quarrying. This environment provides numerous opportunities to observe natural water features, often alongside remnants of past human activity. The waterfalls here are integral to the local ecosystem and landscape.
Last updated: May 22, 2026
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Rhaeadr Idwal is the scenic waterfall formed as the outflow of Llyn Idwal tumbles toward the Ogwen Valley. Cascading over ancient volcanic rock, it is a highlight of the approach path from Ogwen Cottage. Nearby, the Devil’s Appendix plunges 93 meters down the cliffs of Twll Du, making it the tallest single-drop waterfall in Wales. These falls are most dramatic after heavy rain or when frozen into spectacular ice columns in winter.
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📖 Rhaeadr y Chwarel is A picturesque mountain waterfall tucked into the lower section of Cwm Llan, near the old slate quarry workings on the southern flanks of Snowdon. The name literally means “Quarry Waterfall,” a nod to the mining history of the area, you can still see traces of old quarry buildings, walls, and inclines nearby. 👥 Feels remote and peaceful. Take in the surroundings before tackling the steeper, rockier terrain above and the crowds at the summit of Snowdon. 🚗 From Rhy-Ddu car park, c. 2.8 miles. ☕ A perfect spot to stop for a brew as it is sheltered. ⚠️ Access is along the well-trodden quarry approach path, so you don’t need scrambling skills. (Unless you walk further up the path to the top of Snowdon) To sum up: Rhaeadr y Chwarel is one of those small but memorable landmarks on Snowdon’s southern approaches. It’s not a massive waterfall, but its mix of natural beauty and industrial heritage makes it stand out. A perfect spot to pause before the serious climbing begins.
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The long abandoned Barracks and Mill buildings of Rhosydd Quarry in the Moelwyn mountains of North Wales on a changeable day last September. A break in the heavy cloud allowed a burst of sunlight through that lit up the shiny slate rubble to make it look a bit like water. The dark buildings stood out against the lower slopes of Foel Ddu.
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The spartan barracks at Rhosydd, a hard place to live and work, not far from the summit of a mountain.
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Straight ahead over the bridge is the path to Cwm Idwal, but take time to see the waterfall and rapids on the River Idwal. Very pretty.
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If you will turn right before bridge - you’ll go to the canyon with stunning small pond in the end. If you go straight on the bridge - you’ll follow path to the lake.
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Yes, several waterfalls in the Llanberis area are suitable for families. Aber Falls is particularly accessible with well-maintained trails. Another great option is Idwal River Waterfall, which is close to a visitor center and features rapids that children often enjoy.
Absolutely. For beginners, the walk to Aber Falls is highly recommended, featuring well-maintained paths suitable for various abilities. The Idwal River Waterfall is also easily accessible from the visitors centre. Additionally, Rhaeadr y Chwarel (Quarry Waterfall) offers a picturesque experience via a well-trodden quarry approach path.
Parking options vary by waterfall. For Aber Falls, there is free parking available just below the stone bridge, with additional paid parking in the upper car park. If you're visiting Rhaeadr y Chwarel, you can typically park at the Rhy-Ddu car park, which is approximately 2.8 miles away.
Yes, the Llanberis region is rich in industrial heritage, and several waterfalls are nestled within historical sites. Plas Cwm Llan Ruins and Waterfalls features remnants of copper mines and slate quarries. Similarly, Rhosydd Quarry — Ruins and Waterfall offers a glimpse into the area's slate mining past with old barracks and workhouses. Rhaeadr y Chwarel also has traces of old quarry buildings nearby.
The waterfalls around Llanberis are often most spectacular after rainfall, when the water flow is at its strongest. For instance, Aber Falls is described as 'best seen on a rainy day' when the water thunders over the cliff. Generally, spring and autumn offer good water levels and pleasant hiking conditions, while winter can provide dramatic, icy scenes, though paths may be more challenging.
While not explicitly designated for wild swimming, some visitors do engage in water activities. At Plas Cwm Llan Ruins and Waterfalls, tips mention that 'those who dare to brave the (very) cold water on a sunny day can also have some water fun here.' Always exercise caution, be aware of water conditions, and respect local regulations regarding swimming.
Many trails in Snowdonia National Park, including those leading to waterfalls, are dog-friendly. However, it's crucial to keep dogs on a lead, especially in areas with livestock or near cliff edges, and to clean up after them. Always check specific signage at trailheads for any restrictions.
The Llanberis area, with its numerous waterfalls, is a hub for outdoor activities. You can enjoy various waterfall hikes, ranging from easy to difficult. The region also offers extensive mountain hikes, including routes to Snowdon's summit, and challenging running trails through diverse landscapes.
Facilities vary by location. For Aber Falls, toilets are available near the upper car park. The Idwal River Waterfall is close to a visitor center, which typically offers amenities. For more remote spots like Rhaeadr y Chwarel, it's recommended to bring your own refreshments, as it's described as a 'perfect spot to stop for a brew' due to its sheltered location.
Visitors consistently praise the spectacular natural beauty and the sense of history intertwined with the landscape. The sheer power of falls like Aber Falls, especially after rain, is a major draw. Many also appreciate the unique experience of exploring industrial ruins alongside natural cascades, as seen at Plas Cwm Llan Ruins and Waterfalls and Rhosydd Quarry — Ruins and Waterfall, which offer a poignant step back in time.
While many waterfalls are well-known, some offer a more secluded experience. Rhaeadr y Chwarel (Quarry Waterfall), for example, is described as feeling 'remote and peaceful,' tucked into the lower section of Cwm Llan. Exploring the numerous trails in the region can also lead you to smaller, unnamed cascades that provide a sense of discovery.


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