Best lakes around Arthog are found in Gwynedd, Wales, a region known for its diverse natural landscapes. The area features several notable lakes, offering a range of experiences from tranquil settings to challenging hikes. These lakes are often nestled within mountainous terrain, providing scenic views and opportunities for outdoor activities. Arthog's lakes are integral to the local environment and history, with some serving functional roles while others are steeped in local folklore.
Last updated: May 6, 2026
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First, a somewhat adventurous ride on the single track to the parking lot, which costs £5. The easy loop around the lake is very beautiful and relaxing – the sheep roam freely, but they keep their distance. Dogs must be on a leash, of course, but that's not a problem. Enjoy it – and if you're up for more, go for a longer loop. There are a few tables and benches above the parking lot for your picnic. You won't find any litter baskets, so you'll have to take them with you – which is perfectly fine, as it's a nature reserve. Highly recommended.
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Very nice pre-summit on the way to Pen-y-Cadair
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take a little time, have a sit and let it soak in
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Mega Tough - At the top its worth it!
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A quieter peak compared to the Eryri hotspots with great views of Cardigan Bay.
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A circular walk through the historical Nannau estate and along the shore of Llyn Cynwch The Precipice has a fantastic array of qualities. From habitats such as woodlands and meadows to captivating views of Snowdonia’s mountain ranges. The path will take you through part of the Nannau estate which dates back to the 12th century and is steeped in fascinating Welsh history. The route ends on the shores of Llyn Cynwch—a working reservoir that provides nearby Dolgellau with water.
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Llyn Cynwch acts as both a 'prequel' and 'sequel' to the Precipice Walk, one of the most famous and popular walks in the area with breathtaking views. You'll get a glimpse of the lake if you take the route counterclockwise and you'll see it in all its glory if you finish the walk with a nice, steady stroll along the banks. Together with the Precipice Walk it is part of the historic Nannau estate and is a working water basin that has supplied drinking water for Dolgellau since 1968. Because it is a water basin, swimming is not allowed. (DOLGELLAU.uk)
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Llyn Cynwch acts as both a 'prequel' and 'sequel' to the Precipice Walk, one of the most famous and popular walks in the area with breathtaking views. You'll get a glimpse of the lake if you take the route counterclockwise and you'll see it in all its glory if you finish the walk with a nice, steady stroll along the banks. Together with the Precipice Walk it is part of the historic Nannau estate and is a working water basin that has supplied drinking water for Dolgellau since 1968. Because it is a water basin, swimming is not allowed. (DOLGELLAU.uk)
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The Cregennan Lakes are particularly family-friendly. Owned by the National Trust, they offer a picturesque setting with opportunities for trout fishing, including special rates for young anglers. They are easily accessible with a National Trust car park and are part of various walking routes suitable for families.
Yes, Cregennan Lakes are known for their accessibility. There is a National Trust car park directly at the lakes, making them easy to reach for visitors. The lakes are free to visit and offer stunning views.
You can find a variety of walking trails. For example, Llyn Cynwch is an integral part of the famous Precipice Walk, offering breathtaking views. There are also circular walks from Arthog that pass by Cregennan Lakes, including routes that take you past Arthog Waterfalls and ancient historical sites. For easy hikes, you can explore routes like the 'Cregennan Lakes – Cregennan Lakes loop from Arthog' or 'Cregennan Lakes – Arthog Waterfalls loop from Arthog'. You can find more details on these and other easy hikes in the Easy hikes around Arthog guide.
Swimming is generally not permitted in all lakes. For instance, Llyn Cynwch serves as a working water basin supplying drinking water to Dolgellau, so swimming is not allowed there. Always check local signage and regulations before attempting to swim in any lake.
Llyn Cau is steeped in local myths and legends, including tales of a terrifying serpent, the Afanc, residing in its depths. Its dramatic setting within Cadair Idris contributes to the area's rich folklore. Llyn Cynwch is also part of the historic Nannau estate, which dates back to the 12th century and is rich in Welsh history.
Beyond walking and hiking, the area around Arthog's lakes offers opportunities for various outdoor activities. You can find running trails, such as the 'Mawddach Trail – Barmouth Bridge loop from Arthog', and road cycling routes like the 'Afon Mawddach loop from Barmouth'. For more options, explore the Running Trails around Arthog guide and the Road Cycling Routes around Arthog guide.
Llyn Cau offers a truly dramatic setting, watched over by the imposing cliffs of Craig Cwm Amarch and Penygadair, Cadair Idris' main summit. The views from the ridge above, such as from the View of Llyn Cau from Craig Cwm Amarch, are particularly spectacular.
Cregennan Lakes are popular for their serene beauty and picturesque setting on the northern slopes of Cadair Idris. They offer expansive views down to Barmouth and its estuary, making them a 'fantastically photogenic spot'. They are also well-regarded for trout fishing and their peaceful atmosphere.
Yes, there are circular walks available, particularly around Cregennan Lakes. These routes often start from Arthog and can include features like Arthog Waterfalls and historical sites, providing a varied walking experience. You can find specific circular routes in the Easy hikes around Arthog guide.
The lakes around Arthog offer beauty year-round. Spring and summer provide lush greenery and warmer weather for walking and outdoor activities. Autumn brings vibrant colours to the landscape, while winter can offer a dramatic, tranquil experience, though some trails may be more challenging. The Cregennan Lakes are described as peaceful, making them enjoyable in various seasons.
Yes, some routes to the lakes can be challenging. For instance, the Climb to Llynnoedd Cregennen from Arthog is described as a very difficult and steep ascent, rewarding climbers with coastal views towards Barmouth and the tranquility of Cregennan Lakes. Reaching Llyn Cau also involves a high mountain trek within the Cadair Idris range.


Still not found your perfect lake around Arthog? Check out the guides of these regions to see even more beautiful places.