This monument is open and free to visit with no pre-booking required.
Check our opening times and facilities below; please act responsibly and be respectful of the local area during your visit.
Please adhere to Welsh Government social distancing guidelines and coronavirus restrictions at all times and do not attempt to access enclosed spaces.
Welsh castle and solitary guardian of Snowdonia’s Llanberis Pass
Occupying a lofty, lonely spot overlooking the waters of Llyn Padarn, native-built Dolbadarn Castle was once a vital link in the defences of the ancient kingdom of Gwynedd. Most likely constructed by Llywelyn ap Iorwerth (Llywelyn the Great) in the late 12th or early 13th century, it stood watch over the strategic route inland from Caernarfon to the upper Conwy Valley.
Today the site is dominated by the sturdy round tower, very different in style to the unmortared slate slabs which make up the castle’s curtain walls. Standing 50ft/15.2m high, the tower’s design was probably inspired by that of similar fortresses built by Llywelyn’s rivals in the borderlands of the southern Marches.
Last admission 30 minutes before closing
Closed 24, 25, 26 December and 1 January
Local authority paying public car park available across the road from the castle.
Dogs on leads welcome to access ground floor levels of the site.
Cadw do not allow drone flying from or over its guardianship sites, except by contractors commissioned for a specific purpose, who satisfy stringent CAA criteria, have the correct insurances and are operating under controlled conditions.
Smoking is not permitted.
Postcode LL55 4UB
For further information, please contact: Traveline Cymru on 0800 464 0000 or National Rail Enquiries on 03457 48 49 50.