The rock is currently wet from heavy rain today (22.8mm) with persistent showers throughout the morning and early afternoon. The forecast shows a sustained multi-day rain event through August 30th, with no meaningful drying window expected until September 1st at the earliest.
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
Community
Local knowledge and data feedback from climbers
No community contributions yet — be the first to share local knowledge!