After a very wet spell culminating in 40.5mm on April 11th and 5.5mm on April 12th, today is the first fully dry day with moderate winds and dropping humidity. The rhyolite surfaces may have dried sufficiently given the exposed aspect and wind, but residual dampness in sheltered spots and seepage from the saturated hillside above is likely — climbers should visually check conditions on arrival.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
How accurate is this verdict?
Climbing Outlook
Site Details
The most iconic bouldering venue in North Wales, roadside below Dinas Cromlech in the Llanberis Pass. Rhyolite boulders with problems from V0 to V13 including Jerry's Roof (V8). Extremely easy access but can get very crowded on weekends. The volcanic rock can be slippery when wet.
- Rock Type
- Rhyolite
- Wind Exposure
- Exposed
- Altitude
- 250m
- Climbing
- Bouldering
- Aspects
- SW W
- Problems
- 200
- Boulder Grades
- V0 – V13
- Access
- CRoW Open Access
- Approach
- 1 min
Site Data
- Name
- Cromlech Boulders
- County
- North Wales
- Rock Type
- Rhyolite
- Climbing Types
- Bouldering
- Aspects
- SW, W
- Wind Exposure
- Exposed
- Altitude
- 250m
- Latitude
- 53.0896
- Longitude
- -4.0497
- OS Grid Ref
- —
- Access Type
- CRoW Open Access
- Approach Time
- 1 min
- Problem Count
- 200
- Route Count
- —
- Boulder Grades
- V0 – V13
- Trad Grades
- —
- Tidal
- No
- Parking Notes
- Roadside lay-by on the A4086 in the Llanberis Pass.
- Condition Notes
- —
- ID
- b1e22b55-47f7-4366-ad29-b883395a98e2
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