The rock is wet today following 6.1mm of rain and will remain so, with heavy rain forecast through the next four days totalling nearly 90mm. Despite rhyolite's non-porous nature, the sustained saturation and near-100% humidity mean surfaces will not dry out meaningfully this week.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
How accurate is this verdict?
Climbing Outlook
Site Details
Arguably the best bouldering in the Llanberis Pass, on the south side above the Climbers' Club hut. Around 238 problems on superior quality rhyolite with distinctive stratified formations. The 15–20 minute uphill approach keeps crowds thinner than roadside venues. Named after the classic Wavelength problem (V8).
- Rock Type
- Rhyolite
- Wind Exposure
- Partial
- Altitude
- 300m
- Climbing
- Bouldering
- Aspects
- S
- Problems
- 238
- Boulder Grades
- V0 – V12
- Access
- CRoW Open Access
- Approach
- 18 min
Site Data
- Name
- Wavelength Boulders
- County
- North Wales
- Rock Type
- Rhyolite
- Climbing Types
- Bouldering
- Aspects
- S
- Wind Exposure
- Partial
- Altitude
- 300m
- Latitude
- 53.0886
- Longitude
- -4.0583
- OS Grid Ref
- —
- Access Type
- CRoW Open Access
- Approach Time
- 18 min
- Problem Count
- 238
- Route Count
- —
- Boulder Grades
- V0 – V12
- Trad Grades
- —
- Tidal
- No
- Parking Notes
- Roadside lay-by on the A4086. 15-20 min uphill approach.
- Condition Notes
- —
- ID
- 0a74e515-7053-4cc8-91e6-de396def97f0
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