CountyEthics

RAC Boulders

Rhyolite · Partial exposure · 200m altitude

Marginal — assess
Marginal — Assess Conditions
55%
confidence

The boulders have had roughly 18 hours of dry weather following 7.2mm of rain on April 12, with moderate wind aiding surface drying. While rhyolite dries relatively quickly and the surface may be dry on exposed faces, the persistently high humidity (80%) and lack of strong sun mean sheltered or north-facing surfaces could still be damp — a visual check on arrival is essential before committing to climb.

Based on weather conditions only — does not cover bird nesting restrictions or other access issues.

View full analysis Analysis 1d ago

How accurate is this verdict?

Climbing Outlook

Today 14 Apr
Marginal 55%
Tue 14 Apr
Do Not Climb 85%
Wed 15 Apr
Do Not Climb 85%
Thu 16 Apr
Do Not Climb 65%
Fri 17 Apr
Marginal 50%
Sat 18 Apr
Do Not Climb 55%

Site Details

An excellent collection of roadside boulders near Llynnau Mymbyr between the Llanberis Pass and Capel Curig. Around 65 problems, predominantly easy to moderate (V0–V4), making it one of the best beginner-friendly venues in Snowdonia. West-facing aspect catches afternoon and evening sun. Flat grassy landings and beautiful lakeside setting with views of the Snowdon Horseshoe.

Rock Type
Rhyolite
Wind Exposure
Partial
Altitude
200m
Climbing
Bouldering
Aspects
W
Problems
65
Boulder Grades
V0 – V4
Access
CRoW Open Access
Approach
2 min

Site Data

Name
RAC Boulders
County
North Wales
Rock Type
Rhyolite
Climbing Types
Bouldering
Aspects
W
Wind Exposure
Partial
Altitude
200m
Latitude
53.0965
Longitude
-3.9473
OS Grid Ref
Access Type
CRoW Open Access
Approach Time
2 min
Problem Count
65
Route Count
Boulder Grades
V0 – V4
Trad Grades
Tidal
No
Parking Notes
Roadside near Llynnau Mymbyr between the Llanberis Pass and Capel Curig.
Condition Notes
ID
6d7e1af8-af19-4724-990b-3b531112cd3e

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