Top 5 Castles around Llanberis
Best castles around Llanberis are found in a region characterized by its dramatic mountainous landscape and deep valleys, offering a rich tapestry of history and natural beauty. Llanberis, nestled at the foot of Snowdon, serves as a gateway to exploring ancient fortifications and historical sites. The area's strategic location has led to the construction of various castles, reflecting centuries of Welsh heritage and conflict. These structures are often integrated into scenic surroundings, providing opportunities for exploration alongside outdoor activities.
Best castles around Llanberis
- The most popular castles is Dolbadarn Castle, a historical site that controlled an important route into the heartland of medieval Gwynedd. The round tower consisted of two floors with comfortable accommodation over a basement and was a princely castle.
- Another must-see spot is Caernarfon Castle, a medieval fortress situated on the banks of the River Seiont. Visitors can allow the best part of a day to walk around this medieval marvel that stands right on the waterfront of this beautiful town.
- Visitors also love Ruins of the Britannia Copper Mine at Llyn Llydaw, a historical site. This location is a place to take a break on the way down the miners track.
- Llanberis is known for medieval castles, princely strongholds, and historical ruins. Visitors can explore a variety of historical sites, from well-preserved fortifications to ancient industrial remains.
- The castles around Llanberis are appreciated by the komoot community, with over 140 upvotes and 19 photos shared.
Last updated: May 6, 2026
Ruins of the Britannia Copper Mine at Llyn Llydaw
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Caernarfon Castle
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Dolbadarn Castle
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Dolwyddelan Castle
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You can access the exterior of the castle year-round.
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Segontium Roman Fort
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Segontium Romon Fort is an impressive excavated fortification located just outside Caernarfon. It was founded by Agricola in AD77, and it was garrisoned for over three hundred years. It was the longest-held Roman fort in Wales and used to hold a 'cohors milliaria,' a regiment of about 1,000 auxiliary infantry, mainly recruited from Belgium and Germany. It was linked by Roman roads to the main legionary bases at Chester and Caerleon by a series of marching camps and other forts.
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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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Very nice castle, open in September from 8:30 a.m. to 5 p.m.
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Dolbadarn Castle controlled an important route into the heartland of medieval Gwynedd and was close to rich cattle pastures that provided food and income. Begun in the 1220s, the castle was built in ten years. The round tower consisted of two floors with comfortable accommodation over a basement and was a princely castle... The builder Llywelyn ab Lorwerth died in 1240, and despite his efforts to secure a peaceful succession in Gwynedd, a struggle began that did not find a clear winner until 1255. Llywelyn's grandson, Llywelyn ap Gruffudd, defeated his brothers in battle and became Prince of Gwynedd. But they still posed a threat, and Llywelyn held Owain Goch, his eldest brother, prisoner in Dolbadarn. Here he was held captive for twenty-two long years. The 13th-century poet Hywel Foel ap Griffri described Owain as "a man in the tower, long a guest."
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Dolbadarn Castle controlled an important route into the heartland of medieval Gwynedd and was close to rich cattle pastures that provided food and income. Begun in the 1220s, the castle was built in ten years. The round tower consisted of two floors with comfortable accommodation over a basement and was a princely castle... The builder Llywelyn ab Lorwerth died in 1240, and despite his efforts to secure a peaceful succession in Gwynedd, a struggle began that did not find a clear winner until 1255. Llywelyn's grandson, Llywelyn ap Gruffudd, defeated his brothers in battle and became Prince of Gwynedd. But they still posed a threat, and Llywelyn held Owain Goch, his eldest brother, prisoner in Dolbadarn. Here he was held captive for twenty-two long years. The 13th-century poet Hywel Foel ap Griffri described Owain as "a man in the tower, long a guest."
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Dolbadarn Castle controlled an important route into the heartland of medieval Gwynedd and was close to rich cattle pastures that provided food and income. Begun in the 1220s, the castle was built in ten years. The round tower consisted of two floors with comfortable accommodation over a basement and was a princely castle... The builder Llywelyn ab Lorwerth died in 1240, and despite his efforts to secure a peaceful succession in Gwynedd, a struggle began that did not find a clear winner until 1255. Llywelyn's grandson, Llywelyn ap Gruffudd, defeated his brothers in battle and became Prince of Gwynedd. But they still posed a threat, and Llywelyn held Owain Goch, his eldest brother, prisoner in Dolbadarn. Here he was held captive for twenty-two long years. The 13th-century poet Hywel Foel ap Griffri described Owain as "a man in the tower, long a guest."
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Frequently Asked Questions
What are some easy walking trails around castles in Llanberis?
For an easy walk, consider the trail to Dolbadarn Castle. It's a short, pleasant ascent from Llanberis, offering great views. You can also find an easy 6.78 km loop, "Dolbadarn Castle – Llanberis Visitor Information Board loop from Llanberis," which is part of the Waterfall hikes around Llanberis guide.
Is Dolbadarn Castle accessible from Llanberis by foot?
Yes, Dolbadarn Castle is easily accessible by foot from Llanberis. Many visitors enjoy the short walk up to the castle from nearby hotels, noting the rewarding views from the top.
Are there family-friendly castles to visit near Llanberis?
Absolutely. Caernarfon Castle is a fantastic family-friendly option, offering a vast medieval fortress to explore. The Segontium Roman Fort also welcomes families, providing an interesting historical site with free entrance.
What is the best season to visit castles in Snowdonia and Llanberis?
The spring and summer months (April to September) generally offer the most pleasant weather for exploring castles and the surrounding landscapes. However, autumn can provide dramatic scenery with changing foliage, though you should be prepared for cooler temperatures and potential rain.
Can I find historical information about Dolbadarn Castle?
Yes, Dolbadarn Castle has a rich history. It was built in the 1220s and controlled a vital route into medieval Gwynedd. It's famously known as the place where Llywelyn ap Gruffudd imprisoned his elder brother, Owain Goch, for twenty-two years.
How much time should I allocate to visit Caernarfon Castle?
To fully appreciate Caernarfon Castle, it's recommended to allow the best part of a day. This allows ample time to walk around the extensive medieval marvel, which stands prominently on the waterfront.
Are there less crowded castle options near Llanberis?
For a potentially less crowded experience, consider Dolwyddelan Castle. Its dramatic, remote location in Snowdonia National Park makes it a stunning, yet often quieter, historical site. The exterior is accessible year-round.
What outdoor activities can I combine with a castle visit near Llanberis?
The region around Llanberis is perfect for combining castle visits with outdoor activities. You can find numerous waterfall hikes, mountain hikes, and running trails. For example, a moderate 7.75 km loop, "Dolbadarn Castle – Llyn Padarn Trail loop from Llanberis," integrates a castle with a scenic lake walk.
Are any castles near Llanberis wheelchair accessible?
While many historical sites in the region have uneven terrain, Caernarfon Castle offers some accessible routes and facilities. It's always best to check their official website for the most current accessibility information before your visit.
Are dogs allowed at castles around Llanberis?
Policies vary by site. Generally, dogs on leads are often permitted in the outdoor grounds of many historical sites, but may not be allowed inside buildings. For example, the exterior of Dolwyddelan Castle is accessible year-round, which might be suitable for dog walkers. Always check specific site regulations beforehand.
Where can I find scenic viewpoints of castles near Llanberis?
Many castles in the area offer stunning viewpoints. Dolbadarn Castle provides excellent views of Llyn Padarn and the surrounding mountains. Caernarfon Castle offers picturesque views over the River Seiont and the town. Even the Ruins of the Britannia Copper Mine at Llyn Llydaw offer a unique historical viewpoint amidst dramatic natural scenery.
What should I wear when visiting castles in North Wales, especially in autumn?
When visiting castles in North Wales, particularly in autumn, it's advisable to dress in layers. The weather can be unpredictable, so waterproof and windproof outer layers are essential. Comfortable walking shoes are a must, as many sites involve uneven terrain and walking. A warm hat and gloves can also be beneficial.
Are there cafes or pubs near Dolbadarn Castle?
Yes, Dolbadarn Castle is located very close to Llanberis village, which offers a selection of cafes, pubs, and restaurants where you can refresh yourself after your visit.
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