Best waterfalls around Llanddeiniolen are found in Gwynedd, a region characterized by its mountainous terrain and rich industrial heritage. The area offers a diverse range of natural features, including numerous waterfalls nestled within valleys and alongside historical sites. Visitors can explore various landscapes, from accessible trails to more challenging mountain paths. These natural landmarks provide opportunities for outdoor activities and offer insights into the region's geology and past.
Last updated: July 3, 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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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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The waterfall of the quarry!🏴
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The most accessible waterfall in the region is Aber Falls. It is described as suitable for all ages and abilities, with well-maintained trails leading to it. While the rocks near the falls can be slippery, the walk itself is considered easy.
Yes, Plas Cwm Llan Ruins and Waterfalls combines natural beauty with historical interest. Here, waterfalls and rapids are set amidst the remains of former industrial activities, including copper mines and slate quarries. Similarly, Rhaeadr y Chwarel (Quarry Waterfall) is nestled near old slate quarry workings, with traces of old buildings and inclines still visible, reflecting the area's mining past.
Many of the waterfalls, such as Aber Falls and Idwal River Waterfall, are particularly impressive after rainfall. The water cascades more powerfully, creating a spectacular sight. While this makes for a dramatic experience, be aware that rocks can be slippery.
Beyond the waterfalls themselves, you'll encounter diverse natural features. Near Idwal River Waterfall, you can find rapids and a path leading to Cwm Idwal, with a stunning small pond in a canyon nearby. The Watkin Path, which features several waterfalls, offers beautiful views and leads towards the challenging terrain of Snowdon's summit.
Yes, the Watkin Path Waterfalls are part of a challenging route to the summit of Yr Wyddfa (Snowdon). While the initial section is a pleasant walk, the path quickly becomes steep and strenuous, requiring a good level of fitness and navigation skills. Plas Cwm Llan Ruins and Waterfalls is also located on a challenging section of the Watkin Path.
The region around Llanddeiniolen offers a variety of outdoor activities. You can explore numerous mountain hikes, including routes to Snowdon's summit. There are also MTB trails and gravel biking routes that allow you to experience the diverse landscapes of Gwynedd.
Visitors frequently praise the spectacular views and the dramatic power of the waterfalls, especially after rain. Many appreciate the combination of natural beauty with the region's rich industrial heritage, as seen at sites like Plas Cwm Llan Ruins and Waterfalls. The peaceful and remote atmosphere of places like Rhaeadr y Chwarel is also highly valued for a tranquil break.
For Aber Falls, there is free parking available below the stone bridge, and paid parking in an upper car park, which also has toilets. For Rhaeadr y Chwarel, access is typically from the Rhy-Ddu car park, approximately 2.8 miles away.
Yes, Rhaeadr y Chwarel (Quarry Waterfall) is noted as a perfect, sheltered spot to stop for a break before tackling the steeper terrain towards Snowdon's summit. Plas Cwm Llan Ruins and Waterfalls also offers an ideal location for a break or a picnic by the water.
Caution is advised, especially near the base of waterfalls like Aber Falls, where rocks can be slippery. For more challenging routes like the Watkin Path, a good level of fitness and navigation skills are essential, as the routes are classified as hard and strenuous.
Many of the waterfalls offer great photo opportunities. Aber Falls is a spectacular sight, especially after rain. The Idwal River Waterfall and its rapids are described as very pretty. Rhaeadr y Chwarel, with its mountain setting and historical context, also provides unique photographic subjects.


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