The main feature of the dramatically sited Dolbadarn Castle is a round tower keep. The castle was probably built by Llywelyn ab Iorwerth ('the Great') early in the thirteenth century.
- Above the shore of Llyn Peris, ½ mile (0.8km) southeast of Llanberis on A4086
- Dolbadarn Castle, Llanberis, Gwynedd
- CADW. Free, open access at any reasonable time
- For further information visit cadw.wales.gov.uk
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