Climbs 16
Rocktype Shale
Altitude 1m a.s.l
Faces N

Crag features

Ynysdeullyn consists of two offshore pinnacles, accessible at low tide. Take care with rock on the landward side of the pinnacles - very friable. Single- and multi-pitch routes up to 200ft, more notable for the sense of adventure than amazing climbing.
Craig Ddu is tidal (accessible low-mid tide); good for Beckoning Light (E2 5c*).

Approach notes

Take the minor road NW from the A487 through the village of Mathry. Limited parking near the harbour, esp in summer.

Restricted Access

Ynys Deullyn is half a mile north-west from Abercastle. The rock at Ynys Deullyn is extremely poor and there are no belays in place at the top of routes on the mainland. A thoroughly un-recommended crag!

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Climbs at this crag

Climb name Grade
1TBA - will updateMVS 4b 1
2Sea Grass SlabVD 1
 Craig Ddu 
4Beckoning Light *
-
E2 5c * 
5White Wish *
-
VS 4c  
6Slab and Groove *
-
HS 4a  
 Ynys Deullyn 
8Sea Grass Slab *
-
S  
9The Bubble *
-
VS 4a  
10Plate Glass Slab *
-
VS 4b  
11China Slab *
-
HS 4a  
12Island Rib *
-
HS  
13Tawny Groove *
-
VS 4b  
14Wind Slab *
-
VS 4b  
15Birthday Groove *
-
HVS 4c  
16Kestrel Wall *
-
HVS 4c  
17Amphitheatre Buttress *
-
HS 4a  
18South ArĂȘte *
-
S  
19North ArĂȘte *
-
VD  
20Final Groove *
-
HS 4b  
21Proffwyd Tynged *
-
E2 6a  
* Climbs listed in red are waiting to be checked by a crag moderator, and may not be accurate.

Moderator Updates to this page are checked by UKC volunteer ERU