Loading Notifications...


At UKC we are all climbers and we understand the strong urge to be outdoors as the weather is finally improving. Please proceed with caution though.

Climbs 161
Rocktype Slate
Altitude 300m a.s.l
Faces S

View Stats

Vivian Quarry looking down © Sean Kelly

Crag features

The multi-tiered quarry cutting into the tree-covered slopes above the east end of Llyn Padarn. Home to slate's most famous climb, Comes The Dervish (E3 5c). Also contains plenty of easier routes such as Mental Lentils (HVS 5b), and viciously hard ones (Dawes Of Perception E7 6c). There is good deep water soloing on the Bathtime Wall.

Approach notes

Visible from Llanberis. The closest parking is at the slate museum - check what time it closes.

Restricted Access

June 13th 2019 A major rockfall has occured, mainly affecting the Conscience Slab area.  Considerable loose rock is scattered all over the southern side of the quarry, affecting numerous routes with significant further rock falls likley.  

A major rock fall also occured in 2017- access to the lower tier, beyond Dawes of Perception slab has been fenced off to protect the public. There is currently no access to the Psychotherapy slab or any other routes on the lower level in that area; the small bay directly in front of the scuba diving platform has collapsed rendering this area very unsafe and unstable, with more rock likely to come down.

Access to Mental Lentils and other routes immediately near the entrance to the Lower Level is unaffected. Similarly, access to the Middle (Dervish) level and the Upper Levels is also unaffected by this recent rockfall.

The access to Vivian Quarry is shared with the local Vivian Diving Centre. Please refrain from climbing on the Bathtime Wall while the centre is open and operating - do not climb on the Bathtime Wall/Prow area and the areas at pool level as far as Psychotherapy, if divers are using the pool, due to danger of rockfall affecting the diving activities.  The quarry is within the Padarn Country Park, managed by Gwynedd Council. Climbing is tolerated away from the main paths and the owners make it clear that access away from the main paths is entirely at the individual's own risk and offically not encouraged.

Rockfax App

Available in the Rockfax App

The Rockfax App brings together all the Rockfax climbing information with UKC logbooks and presents it into a user-friendly package for use on Android and iOS devices.


North Wales Climbs

North Wales Climbs covers the best climbing from the whole of this huge and varied area. The book is modelled on the very popular West Country Climbs which set a new standard for selected climb guidebooks back in 2010. It contains all the routes from the 2010 publication North Wales Classics and many more routes and areas, with expanded descriptions and much bigger photo-topos. The book covers all the major mountain crags from Llanberis Pass, to Cloggy; and from Ogwen to the Carneddau. It also includes the Llanberis Slate quarries, Tremadog, the Moelwyns, the Gwynant Valley, Mid-Wales, Gogarth and the North Coast Limestone.
More info
More Guidebooks:
North Wales Slate (2018)
Slate (1992)

Went upto the top level today. Faulty towers pinnacle is no more, looks like fresh rock fall.
BAdhoc - 13/May/16
if you ever get a big freeze -10c for a few days the watertrickle on the base level r/h side becomes a 28m ,grade 7/8 water ice wall.
ben wray - 10/Apr/02
Login as Existing User to add your comments

Climbs at this crag

Name Grade Stars Type Logs Partner Ascents
These climbs you have climbed clean.
These climbs you have climbed by seconding or top-roping.
These climbs you have Dogged.
These climbs you Did not Finish.
Climbs are waiting to be checked by a crag moderator, and may not be accurate. Climbs can't be verified by a crag moderator, and they need more information to confirm it. Climbs are no longer climbable.

Moderators Updates to this page are checked by a UKC volunteer Andy Moles