Top 6 Waterfalls around Porthmadog
Best waterfalls around Porthmadog are situated within Snowdonia National Park, a region characterized by its mountainous terrain and rich Welsh heritage. The area features a diverse natural landscape, including ancient woodlands, river gorges, and coastal views. This setting provides a backdrop for various outdoor activities and historical sites.
Best waterfalls around Porthmadog
- The most popular waterfalls is Rhosydd Quarry — Ruins and Waterfall, a waterfall that features a poignant vestige of the area’s slate mining heritage. These mines produced around 200 million slates from the 1830s until the beginning of the 20th century.
- Another must-see spot is Merlin's Pool, a natural monument with a waterfall. This sacred site is associated with the Welsh Wizard Merlin and is of interest to those interested in the legend of King Arthur.
- Visitors also love Waterfall in Coed Hafod-y-Llyn, a waterfall located in an ethereal ancient oak woodland. A network of trails offers views across Snowdonia National Park, and steam trains from the Ffestiniog Railway run along its border.
- Porthmadog is known for dramatic plunges, cascades in gorges, and waterfalls with historical context. The region offers a variety of waterfalls to see and explore, from hidden woodland falls to those integrated with industrial heritage.
- The waterfalls around Porthmadog are appreciated by the komoot community. The area has received more than 120 upvotes and features over 80 photos from visitors.
Last updated: June 30, 2026
Rhosydd Quarry — Ruins and Waterfall
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Merlin's Pool
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Waterfall in Coed Hafod-y-Llyn
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With rare wildlife and an abundance of beautiful flora, Coed Hafod y Llyn is the perfect forest destination for train enthusiasts and nature lovers.
(Woodland Trust)
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Waterfall in Parc Cenedlaethol Eryri
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Waterfall in Parc Cenedlaethol Eryri
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Other adventures around Porthmadog
Tips from the Community
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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Great walk through a variety of tree species and easy to follow path. Would recommend going anti clockwise/reverse of suggested route as scenery coming back through gorge is stunning (with the bridge as a nice suprise at the end) and easier downhill as plenty of small steps. If taking a dog then be aware there is/are sheep grazing along the route but no stiles or fences to climb if you have a large dog but there are very steep banks/drops along the gorge so recommend keeping on a lead if they are a bit hectic! Would not recommend unless you have a basic level of fitness as some parts of the path are extremely steep.
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Slate was mined here above and below ground from about 1830. The remote location proved difficult, and a series of financial troubles hampered the quarry. It shut during WW1 and reopened afterwards until finally closing in 1948. At it's peak, this was the second-largest underground slate mine in North Wales. Today you can explore the spoil and some of the old machinery.
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Impressive, the many building ruins and the huge waste heaps
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This remote and ethereal ancient oak woodland was once part of a historic estate and slopes gently towards Llyn Mair (Mary's Lake). A network of trails offers spectacular views across Snowdonia National Park, while steam trains from the iconic Ffestiniog Railway wind along the border. With rare wildlife and an abundance of beautiful flora, Coed Hafod y Llyn is the perfect forest destination for train enthusiasts and nature lovers. (Woodland Trust)
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Merlin played a role in the legend surrounding the construction of a fortress that the king named Dinas Emrys in honor of Myrddin Emrys (= the young Merlin). more information about this legend can be found at https://medievalwanderings.com/2023/06/12/walking-with-dragons-at-dinas-emrys/
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A small beautiful waterfall that invites you to take a moment of rest. Always fun. You then sit on a stone or in the grass.
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Frequently Asked Questions
What are some unique waterfalls to visit near Porthmadog?
Beyond the well-known spots, you can discover Rhosydd Quarry — Ruins and Waterfall, which offers a poignant look into the area's slate mining heritage amidst a dramatic landscape. Another unique site is Merlin's Pool, a natural monument with a waterfall, steeped in the legend of King Arthur and located near Dinas Emrys.
Are there family-friendly waterfalls around Porthmadog?
Yes, several waterfalls are suitable for families. Waterfall in Coed Hafod-y-Llyn is located in an ethereal ancient oak woodland with trails and views across Snowdonia. Another great option is the small, beautiful Waterfall in Parc Cenedlaethol Eryri, which is a perfect spot for a picnic and cooling off.
Where can I find waterfalls with historical significance near Porthmadog?
Coed y Brenin Forest Park is home to Rhaeadr Mawddach and Pistyll Gain, which are located near the remains of the Gwynfynydd Gold Mine. The Waterfalls and Goldmines Trail is a moderate 3.5 km circular walk that takes you past both waterfalls and the historical mining remnants, offering a blend of natural beauty and 19th-century industrial history.
What kind of natural features can I expect to see at the waterfalls around Porthmadog?
The region offers diverse natural features. You'll find dramatic plunges into deep ravines, like at Ceunant Llennyrch Waterfall, and spectacular gorges with pretty cascades and rapids, such as those along the Afon Glaslyn river in the Aberglaslyn Pass. Many waterfalls are set within ancient woodlands, offering lush flora and opportunities to spot wildlife.
Are there accessible waterfall walks near Porthmadog?
The Waterfalls and Goldmines Trail in Coed y Brenin, which leads to Rhaeadr Mawddach and Pistyll Gain, is accessible for pushchairs and mobility scooters for much of its length, making it a good option for those seeking easier access.
What outdoor activities can I do near these waterfalls?
Beyond visiting the waterfalls, the Porthmadog area offers a variety of outdoor activities. You can explore numerous hiking trails, including easy options like those found in the Easy hikes around Porthmadog guide. For cyclists, there are also many road cycling routes to enjoy.
Can I bring my dog to the waterfalls?
Many trails in Snowdonia National Park are dog-friendly. For example, the Waterfall in Parc Cenedlaethol Eryri offers a great walk through varied tree species. However, be aware that sheep graze along some routes, and there can be steep drops, so keeping your dog on a lead is recommended for their safety and that of wildlife.
What is the best time to visit the waterfalls around Porthmadog?
The waterfalls are beautiful year-round, but spring and autumn offer particularly stunning scenery with lush greenery or vibrant fall colors. After rainfall, the waterfalls are often at their most powerful and dramatic. Summer provides warmer weather for exploring, while winter can offer a serene, frosty landscape, though trails may be more challenging.
Are there any hidden or less-known waterfalls worth exploring?
Ceunant Llennyrch Waterfall is often described as a 'hidden natural waterfall.' Tucked away in ancient woodland and managed by the Woodland Trust, it plunges dramatically into a deep ravine. It's ideal for a quiet and atmospheric walk, offering a truly wild Welsh woodland experience away from more crowded spots.
What do visitors enjoy most about the waterfalls near Porthmadog?
Visitors frequently praise the breathtaking surroundings, the blend of natural beauty with historical elements, and the sense of tranquility. Many appreciate the opportunities for picnics, climbing, and cooling off at spots like the small waterfall in Parc Cenedlaethol Eryri. The dramatic scenery and the chance to explore ancient woodlands are also highly valued.
Where can I find waterfalls that offer scenic views?
Nantcol Waterfalls, located between Barmouth and Porthmadog, feature a viewpoint at the top of the main falls that offers stunning views overlooking Cardigan Bay and the Llŷn Peninsula. Similarly, the trails around Waterfall in Coed Hafod-y-Llyn provide spectacular views across Snowdonia National Park.
Are there waterfalls near Porthmadog that are part of a longer scenic walk?
The Aberglaslyn Pass, while not a single waterfall, features the Afon Glaslyn river tumbling through a spectacular gorge, creating pretty cascades and rapids. The Fisherman's Path allows walkers to follow alongside the river, providing a dramatic and scenic walk through striking peaks and lush foliage.
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