CountyEthics

Porth Ysgo

Gabbro · Exposed exposure · 10m altitude

Likely safe
Likely Safe to Climb
88%
confidence

Porth Ysgo's non-porous gabbro is effectively dry after an extended period of negligible rainfall — only 0.3mm today and 0.3mm total over the past week. The exposed, SW-facing aspect and strong winds will have cleared any trace moisture rapidly; conditions are excellent for climbing today and tomorrow.

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

View full analysis Analysis 22h ago

How accurate is this verdict?

Climbing Outlook

Today 15 Aug
Likely Safe 88%
Sat 15 Aug
Likely Safe 90%
Sun 16 Aug
Likely Safe 90%
Mon 17 Aug
Marginal 70%
Tue 18 Aug
Do Not Climb 85%
Wed 19 Aug
Do Not Climb 65%

Site Details

The most popular gabbro bouldering area on the Lleyn Peninsula coast — a remote, beautiful beach setting. The gabbro rock is extremely rough and textured, providing superb friction (bring tape). Semi-tidal: some boulders only accessible at low tide. Landings are generally poor and require multiple pads. Around 42 problems across the grades.

Condition Notes

Non-porous gabbro dries very quickly — can often be climbed shortly after rain. Exceptionally rough texture provides good friction even in marginal conditions but is brutal on skin. Semi-tidal: check tide times as some boulders are only accessible at low tide.

Rock Type
Gabbro
Wind Exposure
Exposed
Altitude
10m
Climbing
Bouldering
Aspects
SW
Problems
42
Boulder Grades
Font 3 – Font 7c
Access
CRoW Open Access
Approach
15 min
Tidal
Yes — check tide times

Site Data

Name
Porth Ysgo
County
North Wales
Rock Type
Gabbro
Climbing Types
Bouldering
Aspects
SW
Wind Exposure
Exposed
Altitude
10m
Latitude
52.8046
Longitude
-4.6565
OS Grid Ref
Access Type
CRoW Open Access
Approach Time
15 min
Problem Count
42
Route Count
Boulder Grades
Font 3 – Font 7c
Trad Grades
Tidal
Yes
Parking Notes
National Trust car park at Porth Ysgo. 15-min walk down to the beach.
Condition Notes
Non-porous gabbro dries very quickly — can often be climbed shortly after rain. Exceptionally rough texture provides good friction even in marginal conditions but is brutal on skin. Semi-tidal: check tide times as some boulders are only accessible at low tide.
ID
3382dd9a-67fa-42e7-9c66-9e18f28a0c85

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