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Visitor Notice

Following the announcement of a short ‘firebreak’ lockdown by the Welsh Government as of 6pm on Friday 23 October, all Cadw staffed and unstaffed sites will be closed until further notice.

Until we can welcome you back in person, you can visit us virtually through our Open Doors Online 3D tours. All you’ll need is a mobile phone or a desk-top computer — of if you have a VR head-set you can be fully-immersed inside your selected adventure.

Please check our Latest News for further updates, sign up to our newsletter or stay in touch through our social media channels:

Facebook @CadwWales | Twitter @cadwwales | Instagram @cadwcymruwales

Diolch and we hope to see you again soon.

Overview

Iconic Neolithic tomb with a celestial secret

One of Anglesey’s most famous prehistoric landmarks, Bryn Celli Ddu (the ‘Mound in the Dark Grove’ in English) is actually two sites in one. In the early Neolithic (New Stone Age) period, a henge (bank and ditch) enclosing a circle of stones was built here, to be replaced later by a chambered tomb beneath a mound measuring up to 85ft/26m in diameter. Inside, a long, narrow passage leads to an octagonal chamber 8ft/2.4m across, where artefacts such as human bones, arrowheads and carved stones have been found.

But Bryn Celli Ddu’s most unusual feature can only be seen once a year. As the sun rises on the summer solstice (the longest day of the year) shafts of light shine directly down the tomb’s passageway to illuminate the chamber within.

More about Bryn Celli Ddu


Opening times

Daily 10am – 4pm 

Last admission 30 minutes before closing

Closed 24, 25, 26 December and 1 January


Prices

Category Price
Admission
Free

Facilities

Bikes access icon Car park icon No smoking icon No drones icon

Directions

Road
N of A4080, 1m (1.6km) ESE of Llanddaniel Fab. Llanfair PG 2m (3.2km).

Postcode LL61 6EQ

For further information, please contact: Traveline Cymru on 0800 464 0000 or National Rail Enquiries on 03457 48 49 50.