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Wales
North Wales
Gwynedd

Snowdonia

Top 9 Castles in Snowdonia

Castles in Snowdonia are set amidst a landscape of mountains, valleys, and coastline in North Wales. This region is known for its diverse terrain, including the highest peak in Wales, Snowdon, and numerous lakes and forests. The area holds significant cultural and historical importance, with a rich heritage of Welsh language and traditions. Visitors can explore a variety of historical sites, including ancient fortifications and industrial heritage, often accessible via walking trails.

Best castles in Snowdonia

  • The most popular castles…

Last updated: May 1, 2026

Ruins of the Britannia Copper Mine at Llyn Llydaw

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Might be a fun spot for a bivi.

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Harlech Castle

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Against stiff competition from Conwy, Caernarfon and Beaumaris, this is probably the most spectacular setting for an Edward I castle in North Wales. All four are recognized as World Heritage …

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Castell y Bere

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This 13th-century castle is remote and magnificent and its ruined walls are incredibly evocative. It was built by Llywelyn the Great to defend Gwynedd and it's not hard to see …

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The equestrian statue at Harlech Castle, Wales, called The two Kings, shows Bendigeidfran carrying the body of his cousin Gwern after his death at Efnysien's hands.
Bendigeidfran is a giant …

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Dolwyddelan Castle

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It would be hard to overstate the drama of this 13th-century castle, thanks to its incredible location in Snowdonia National park. Thought to have been the birthplace of Llywelyn the …

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David Williams
June 11, 2025, Castell y Bere

Llewellyn's protecting castle for his lands on his southern border.

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The two king’s statue

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James
August 19, 2024, Harlech Castle

a great castle to explore with views over the se and the Llyn peninsula. It has an informative video that explains its history and then a walk across the bridge that leads you through the fortifications. you can then explore all the rooms that have exhibits of the castles history within them. to finish off you can climb the tower to see the view. Great for kids as there is a park next to it and a cafe across the bridge to keep everyone happy. Parking is available on site but it is a small carpark.

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The path after this is very difficult to find. pay close attention to your route. we went wrong...

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The equestrian statue at Harlech Castle, Wales, called The two Kings, shows Bendigeidfran carrying the body of his cousin Gwern after his death at Efnysien's hands. Bendigeidfran is a giant and king of Britain in Welsh mythology. He appears in several stories, but his most important role is in the Second Branch of the Mabinogi. (Equestrian statues

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Against stiff competition from Conwy, Caernarfon and Beaumaris, this is probably the most spectacular setting for an Edward I castle in North Wales. All four are recognized as World Heritage Sites. Harlech was completed from ground to battlements in just seven years under the guidance of the gifted architect Master James of St. George. The classic 'walls within walls' design makes optimal use of the difficult natural defenses. Even when the castle was completely cut off by Madog ap Llewelyn's rebellion, it held strong – thanks to the 'Way from the Sea'. Via this path of 108 steps, which climbed steeply up the rock face, the besieged defenders could be supplied with food and drink by ship. Harlech is easier to conquer these days. You can enter this amazing castle via an incredible 'floating' walkway. (Cadw Wales)

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Located next to Harlech Castle and freely accessible. It is worth taking 5 minutes to study this image. There is an explanatory plaque that tells the story. The statue is by Ivert Robert-Jones (1913 –1996).

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Last time I drove passed (02/03/2003) the car park is closed and all the signs are covered up so check before visiting

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Frequently Asked Questions

Which castles in Snowdonia are particularly family-friendly?

For families, Harlech Castle is a great choice. It offers an informative video, exhibits, and the opportunity to climb a tower for views. There's also a park next to it and a cafe nearby. Additionally, the Two Kings Statue at Harlech Castle is freely accessible and has an explanatory plaque, making it an interesting stop for all ages.

Are there any less crowded or more remote castles to visit in Snowdonia?

If you prefer a quieter experience, Castell y Bere is described as remote and magnificent, with evocative ruined walls set against a stunning backdrop of patchwork hills and rocky peaks. It requires a climb to reach, adding to its secluded feel. Dolwyddelan Castle also offers a dramatic setting within Snowdonia National Park.

What is the best time of year to visit castles in Snowdonia?

The best time to visit Snowdonia's castles is typically during the spring (April-May) and autumn (September-October) when the weather is often milder and the landscapes are beautiful, with fewer crowds than the peak summer months. Summer (June-August) offers the warmest weather and longest daylight hours, but also the highest number of visitors. Winter can be dramatic but also cold and wet, with shorter opening hours for some sites.

What kind of historical significance do Snowdonia's castles hold?

Snowdonia's castles are rich in history. Harlech Castle is a UNESCO World Heritage Site, an Edward I castle known for its 'walls within walls' design and its strategic 'Way from the Sea'. Castell y Bere and Dolwyddelan Castle are both 13th-century Welsh castles, thought to have been strongholds of Llywelyn the Great, offering insights into native Welsh resistance.

Are there hiking opportunities near the castles in Snowdonia?

Yes, Snowdonia is renowned for its hiking trails. For example, the Ruins of the Britannia Copper Mine at Llyn Llydaw is a historical site that serves as a great spot for a break on the Miners Track, a popular hiking route. You can find many more hiking options in the region, including easy hikes, by exploring komoot's guide to Easy hikes in Snowdonia.

What should I wear when visiting castles in Snowdonia?

Given Snowdonia's often unpredictable weather, it's advisable to dress in layers. Waterproof and windproof outer layers are recommended, even in summer. Comfortable walking shoes or boots are essential, as many castles involve uneven terrain, steps, and outdoor exploration. A hat and gloves can be useful, especially outside of peak summer.

Is parking available at Snowdonia's castles?

Parking availability varies by castle. For instance, Harlech Castle has parking available on site, though it is a small car park. For Dolwyddelan Castle, it's recommended to check current conditions as the car park has been known to be closed at times.

What do visitors enjoy most about the castles in Snowdonia?

Visitors frequently appreciate the dramatic settings of the castles, often nestled amidst mountains, valleys, and coastlines. The historical depth, the opportunity to explore well-preserved structures and evocative ruins, and the stunning views from their battlements are often highlighted. The unique architecture, like Harlech's 'walls within walls' design, and the connection to Welsh history, such as Llywelyn the Great, also resonate strongly with visitors.

Are there options for mountain biking or gravel biking near the castles?

Yes, Snowdonia offers extensive opportunities for mountain biking and gravel biking. While not directly adjacent to every castle, the region provides numerous trails. You can explore komoot's guides for MTB Trails in Snowdonia and Gravel biking in Snowdonia to find routes that might be accessible from areas near the castles.

Are any of the castles in Snowdonia wheelchair accessible?

Harlech Castle has made efforts towards accessibility, featuring an 'incredible floating walkway' that allows entry into the castle. While this improves access, it's always advisable to check the specific accessibility details with the castle's official site for the most up-to-date information on routes and facilities for wheelchair users.

Can I find cafes or refreshments near the castles?

Yes, some castles have amenities nearby. For example, Harlech Castle has a cafe located across the bridge from the castle entrance. For other, more remote castles like Castell y Bere or Dolwyddelan Castle, it's best to bring your own refreshments or plan to visit nearby towns for food and drink.

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