Llanberis Slate

Rock Climbing

Dinorwig Quarry / Chwarel Dinorwig | ©Ray Wood

Llanberis Slate

Rock Climbing

The Dinorwig slate quarries provide an immense, surreal backdrop to the village of Llanberis. The history of the quarries defines the cultural base of the surrounding area, and although closed since 1969, its impact upon the local community still resonates to this day.

During the 1980s a new generation of climbers set about developing this fascinating industrial wasteland into a premier climbing venue. The legacy of their efforts is a collection of exquisitely technical climbs, sometimes geared with the odd bolt, but often run out and serious. Traditionally slate was a medium preserved almost exclusively for those operating in the extreme grades, however in recent years a large number of lower grade sport routes have been equipped.
The Glyn Rhonwy quarries on the opposite side of the valley offer further trad and sport routes, albeit of a generally more esoteric nature.
There are some access restrictions to the quarries – see the BMC Regional Access database for more details.


Good climbing conditions will be found in the quarries throughout the year. The rock dries extremely quickly, making it a popular option in showery or changeable weather. The quarried levels are set at various different aspects so it is easy to find shade or sunshine.


Access to the quarries is made either from the Slate Museum car park (Gilfach Ddu) at the base of Vivian Quarry, or from the Bus Stop Quarry ‘turning circle’ on the outskirts of the village of Dinorwig.

Safety & Access
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Safety & Access

The publisher of this website accepts no responsibility for the way in which readers use the information contained therein. The descriptions and recommendations are for guidance only and must be subject to discriminating judgement by the reader. Advice and training should be sought before utilising any equipment or techniques mentioned within the text or shown in any of the photographic images. Climbing is an activity with a danger of personal injury or death. Participants in this activity should be aware of and accept these risks and be responsible for their own actions and involvement.

Access Notes:


Season Dates:

Seasonal Notes:

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Additional Information:


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Books, Guides & Maps

Llanberis Slate

The definitive guide to climbing in the slate quarries around Llanberis. 900 sport and trad routes detailed in this unique climbing area.


OS Maps for area

Explorer OL17

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