Probably built by Llywelyn ab Iorwerth ('the Great') early in the thirteenth century, the castle is dominated by a massive round-towered keep, still standing up to 50 feet (15.2m) high.
1 April 2018 - 31 March 2019
Daily 10am – 4pm
Last admission 30 minutes before closing
Closed 24, 25, 26 December and 1 January
For yearly opening times please click 'View all visitor information'
Family - Am ddim/Free
Senior citizens, students and children under 16 - Am ddim/Free
Disabled and companion - Am ddim/Free
Facilities and information
- Under 16s must be accompanied by an adult
- Dogs on leads welcome
- No smoking
- 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.
Postcode LL55 4UB
Road 1/2m (0.8km) SE of Llanberis, on A4086
Rail Bangor 9m (14.5km).
For further information, please contact: Traveline Cymru on 0800 464 0000 or National Rail Enquiries on 03457 48 49 50.