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image for Castle item typeDolbadarn Castle (Cadw)

  • Cadw Welsh Government

Castle, free entry

Dolbadarn Castle

Dolbadarn Castle

In light of COVID-19, please make sure you check with your travel and activity or attraction providers before travelling. You can get the most up-to-date information on COVID-19 in Wales at the Public Health Wales website.


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.

Picnic siteAccepts groups

Children welcomeDogs accepted

Opening Details

Open all the time

Daily 10.00am - 4.00pm. Closed 24, 25, 26 December and 1 January.
Last admission 30 minutes before closing.


Free entry




LL55 4UB



Plan route to Dolbadarn Castle (Cadw) using Google mapsPlan route using Google maps

Map reference: SH 585598  Lat: 53.11659 Long: -4.11438

Travelling south-east out of Llanberis on the A4086, left where signed for Padarn Country Park; car park for the Castle on left.

Accessible by Public Transport: 9 miles from Bangor station


  • Picnic sitePicnic site
  • Accepts groupsAccepts groups
  • Children welcomeChildren welcome
  • Dogs acceptedDogs accepted