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.
Dolbadarn Castle, Llanberis. LL55 4UB
Monday10:00 am - 4:00 pm
Tuesday10:00 am - 4:00 pm
Wednesday10:00 am - 4:00 pm
Thursday10:00 am - 4:00 pm
Friday10:00 am - 4:00 pm
Saturday10:00 am - 4:00 pm
Sunday10:00 am - 4:00 pm
These are the peak summer opening times.
Other times may vary. For full details please visit the CADW website.
Last admission 30 minutes before closing.
Closed 24th, 25th, 26th December and 1st January.