Dolbadarn Castle, Llanberis, Eryri National Park (Snowdonia), Wales

Dolbadarn Castle stands on a rocky outcrop near Llanberis in Eryri National Park, also known as Snowdonia, North Wales. Overlooking Llyn Padarn and the surrounding mountain scenery, this medieval fortress is an important reminder of the history of the Welsh princes and the ancient kingdom of Gwynedd.

Dolbadarn Castle, Llanberis, Eryri National Park (Snowdonia), Wales
Dolbadarn Castle, Llanberis, Eryri National Park (Snowdonia), Wales


The castle was most likely built by Llywelyn the Great in the late 12th or early 13th century to help defend the strategic Llanberis Pass. Its position offered a commanding view of the route through the mountains, making it an important stronghold in medieval Wales.

Today, the ruins are dominated by a distinctive round stone tower that rises above the remains of the castle walls. Set against the dramatic landscape of Eryri, Dolbadarn Castle is a popular destination for visitors interested in Welsh history, medieval architecture and scenic photography.

Quick Facts About Dolbadarn Castle

  • Location: Llanberis, Gwynedd, North Wales, United Kingdom
  • Welsh Name: Castell Dolbadarn
  • Historical Period: Medieval
  • Likely Builder: Llywelyn the Great
  • Construction Date: Late 12th or early 13th century
  • Main Feature: A prominent circular stone tower
  • Nearby Lake: Llyn Padarn
  • National Park: Eryri National Park (Snowdonia)
  • Best For: Welsh history, castle ruins, mountain scenery and photography

Dolbadarn Castle, Llanberis, Eryri National Park (Snowdonia), Wales Map

Explore the location of Dolbadarn Castle near Llanberis and Llyn Padarn in North Wales using the map below.