This site is now open to view or visit.
In line with Welsh Government advice and guidance, we have started to reopen a selection of our unstaffed heritage sites in a safe and controlled way — for the benefit of local communities.
We are pleased to announce that this monument is now open and is free to view or visit with no pre-booking required. Please adhere to our new visitation guidelines, act responsibly and be respectful towards the site and its local area at all times.
Site opening times, parking and other available facilities at our reopened sites may have changed. Please check this site’s webpage carefully for specific updates.
For further information on what to expect and how to stay safe during your visit, please read our FAQs page.
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.
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.