Bryn Celli Ddu Chambered Tomb
Visitor notice
Bryn Celli Ddu Chambered Tomb is open as part of our guided tours programme from May to August each year. These tours provide a unique opportunity to explore the site with expert insights into its history and significance. Want to be the first to know about new tour dates and prices?
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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.
Opening times & prices
Opening times
| 1st April - 31st March | Open all year |
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Open all year — during reasonable daylight hours |
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Visitor information
Bikes access
Car park
Gravelled car park approx. 10 minutes’ walk from the monument.
Dogs welcome
Walking difficulty
Terrain: Level 3 — Moderate
No smoking
Drone policy
Health & Safety
Care and attention must be paid when visiting this monument. It will be regularly exposed to the natural elements and may be slippery or muddy underfoot.
Appropriate footwear for the season and type of monument must be considered prior to your visit. Please only attend during the set opening hours, these have been chosen for your safety i.e. appropriate level of lighting.
Many of our monuments are located at areas of height, attention must also be paid therefore to the surrounding areas, ditches and moats when visiting.
Guardrails have been installed to prevent access to any areas of the site that we have deemed as dangerous or to prevent falls in specific areas. Please do not climb over or through any fixed installation.
Any handrail provided should be used to help you safely navigate historic steps, as these may be uneven and may be of different height.
As with all ancient monuments there is always a risk of stones being dislodged in bad weather, however, we manage this through extensive monitoring.
Climbing may result in serious injury.
There are several wild plants and flowers, although these are great pollinators, they may be poisonous to visitors and animals, we strongly advise you not to touch or allow dogs to eat any vegetation.
There may be shared access or neighbouring farmland that may involve the presence of grazing cattle or farm animals.
Please watch our health & safety film before visiting Cadw sites.
Iechyd a Diogelwch / Health and Safety
Please report any anti-social behaviour such as climbing, setting fires, graffiti etc. to CadwAccidentsReports@gov.wales
The following signs can be found around the site at key areas of risk, please pay attention where appropriate.
Slippery or uneven surfaces
Low light
Low ceilings
Falls from height
Directions
Google MapPostcode LL61 6EQ
what3words: ///renting.framework.baker
For further information, please contact: Traveline Cymru on 0800 464 0000 or National Rail Enquiries on 03457 48 49 50.
