Best castles around Clynnog are found in a region rich with historical fortifications. Clynnog Fawr is situated on the Llŷn Peninsula, a coastal area known for its natural landscape and historical significance. While Clynnog itself features St. Beuno's Church, a 7th-century monastic site, the surrounding area offers access to medieval castles. This location provides a base for exploring the historical architecture of North Wales.
Last updated: August 29, 2026
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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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Criccieth Castle overlooks Tremadog Bay on the Llŷn Peninsula in North Wales. It was built in the 13th century and remains in remarkably good condition. It's well worth looking inside, although there is a charge, and you can learn about its history from boards. As you might expect, it's blessed with absolutely fantastic views.
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Very nice castle, open in September from 8:30 a.m. to 5 p.m.
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A beautiful, large Castle with many towers you can gogo up to have a great view of the surrounding area. A very rewarding destination for any tour. if you go in, plan at least 1-2 hours to go everywhere, or just admire the walls from outside.
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Criccieth Castle overlooks Tremadog Bay on the Llŷn Peninsula in North Wales. It was built in the 13th century and remains in remarkably good condition. It's well worth looking inside, although there is a charge, and you can learn about its history from boards. As you might expect, it's blessed with absolutely fantastic views.
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Beautiful small Welsh town with plenty of cafés, a nice sea front, promenade, pebble beach, and a rather obvious 13th century castle overlooking the town.
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A visit to Wales is not complete until you visit Caernarfon Castle. Wales is lucky to have a plethora of world class castles and here in North Wales there are four of them Beaumaris, Conwy, Harlech and Caernarfon. Caernarfon Castle is the most noted of the fantastic four as they are known. Allow yourself the best part of a day to walk around this medieval marvel that stands right on the water front of this beautiful little town.
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While Clynnog is known for its castles, you can also visit Segontium Roman Fort, an impressive excavated fortification built in AD 77 on the outskirts of Caernarfon. It was once the most important military base in North Wales and offers views over the Menai Straits. Additionally, Clynnog Fawr itself is home to St. Beuno's Church, a significant monastic site dating back to the 7th century.
Yes, both Caernarfon Castle and the area around Criccieth Castle, town and seafront are considered family-friendly. Caernarfon Castle offers a vast site to explore, including the Royal Welch Fusiliers Museum. Criccieth provides a castle with stunning views, a seafront, and a pebble beach, making it suitable for families.
The castles are generally accessible year-round. Visiting during spring or autumn can offer pleasant weather for exploring and fewer crowds. Summer provides longer daylight hours, but also more visitors. Winter visits can be atmospheric, though some facilities might have reduced hours. Always check specific castle opening times before your visit.
Caernarfon Castle offers spectacular views over the Menai Strait, Anglesey, and Snowdonia National Park from its towers. Criccieth Castle, perched on a rocky headland, provides breathtaking panoramic views across Cardigan Bay and towards Snowdonia National Park.
Yes, the region around Clynnog offers various outdoor activities. You can find numerous road cycling routes, mountain hikes, and general cycling tours that pass near these historical sites. For example, there are cycling routes like the 'Caernarfon Castle – Caernarfon Castle loop' and mountain hikes such as 'Snowdon Summit loop'. You can explore more options in the Road Cycling Routes around Clynnog, Mountain Hikes around Clynnog, and Cycling around Clynnog guides.
For a comprehensive visit to Caernarfon Castle, it's recommended to allow the best part of a day. This will give you ample time to explore its extensive grounds, climb the towers, and visit the Royal Welch Fusiliers Museum.
Caernarfon Castle is a UNESCO World Heritage Site, renowned for its distinctive polygonal towers, banded stonework, and immense scale, which were partly inspired by the Walls of Constantinople. It was built by Edward I and holds significant historical importance as a symbol of medieval military architecture and power struggles.
Criccieth Castle is historically significant as it was originally built by the Welsh prince Llywelyn the Great in the early 13th century, and later modified by Edward I. It showcases a unique blend of native Welsh and English architectural styles, reflecting the turbulent conflicts between Welsh princes and English kings.
Both Caernarfon and Criccieth are towns with amenities. Caernarfon, where Caernarfon Castle is located, has various pubs and restaurants. Similarly, Criccieth, home to Criccieth Castle, town and seafront, is described as a beautiful small Welsh town with plenty of cafés and a nice seafront, offering options for food and drink.
Given the often unpredictable Welsh weather and the nature of exploring historical sites, it's advisable to wear comfortable walking shoes suitable for uneven terrain. Layers of clothing are recommended, as well as waterproof outerwear, especially if you plan to spend time outdoors or climb towers for views.
Yes, there is typically an entrance fee for the main castles. For instance, tickets for Caernarfon Castle cost £9.90 for adults. Criccieth Castle also charges for entry, though Segontium Roman Fort offers free entrance. It's always best to check the official websites for the most current pricing and opening hours.


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