Caernarfon between Castle and Harbour

In Caernarfon, medieval architecture, the harbour and cultural venues come together as different themes for a stay. If you are looking for a hotel in Caernarfon, your preferred focus can be a good starting point for planning: the castle and town walls shape the historical perspective, while the harbour, exhibitions and Welsh Highland Railway reveal other sides of the town and its surroundings.

Castle, town walls and town layout

Caernarfon Castle is a fortress and palace on the banks of the River Seiont and is considered one of the most significant medieval buildings. The castle and walled town lie on a rocky peninsula between the mouths of the rivers Seiont and Cadnant on the Menai Strait. The riverbanks, landform and fortifications are therefore among the defining features of the townscape.

Edward I and his military architect, Master James of St George, built Caernarfon Castle, the town walls and a quay at the same time. Construction of the town walls began in 1283 in connection with the building of the castle. This shared planning provides a historical context in which to view the individual structures without equating their different functions: the castle is a fortress and palace, while the walls enclose the town.

The route along the medieval town walls is almost entirely intact and includes eight towers and two gateways. These figures give the scale of the fortifications a tangible outline. The Royal Welch Fusiliers Museum is also located in the castle. Access to Porth Mawr Tower is possible after collecting a key; key collection is subject to seasonal arrangements in 2026. Check these arrangements before your trip.

Architecture, archaeology and industrial history

Another historical perspective is offered by the Roman fort of Segontium, founded almost two millennia ago. Segontium is also mentioned in The Dream of Macsen Wledig. Archaeological history and literary tradition therefore sit alongside medieval architectural history, without covering the same period or offering the same perspective on the past.

Cei Llechi was historically an important industrial and maritime centre for Caernarfon and the surrounding region. The site's exhibition and information area explores its local, national and international significance. This offers a way to explore the site's history at several different scales: from its role in the town to its wider regional context.

The Institute Building also tells the story of a different role in town life. It was built in 1884 to serve the educational and cultural needs of the population. Surviving Art Nouveau features include brass door handles and woodwork. Here, the building's purpose and design can be considered together: its history encompasses both the reason it was built and specific details of its fittings.

Harbour, culture and other themes

The historic harbour and Victoria Dock lie in the heart of the town and form a lively waterfront promenade with boats and views across the Menai Strait. Galeri Caernarfon is also an arts centre by the water. Its programme includes live performances, films, exhibitions and events; there is also a café-bar. Thus, art and events stand alongside the historic heritage as distinct themes in the townscape.

The Welsh Highland Railway runs for 25 miles from Caernarfon to Porthmadog. For a different historical focus, you could visit the nearby Airworld Aviation Museum, which tells the story of the origins of the RAF Mountain Rescue Service, established in 1942 at RAF Llandwrog airfield. The places and themes mentioned here range from buildings within the medieval town to a railway line and a historical account nearby.

Discover more destinations: Mallwyd, Nefyn, Aberangell, Llanddeiniolen, Llanbedrog, Dolgellau, Llanegryn, Harlech.

For the wider travel overview: Gwynedd.