Graig Ddu Cave / Sill
Graig Ddu Cave / Sill

Graig Ddu (Black Rock ) is an intrusion of Volcanic Rock (Basalt) and folded metamorphic Rock
A number of Caves can be seen from the beach .
This , the most western cave shows a Sill with columnar jointing.
The Coast Path goes around Graig Ddu , but it may be possible to climb the rock face
and arrive near the location of the next photo.

Ref: NW 53

Date: 16/09/2021

Location: SH 5222 3742

Graig Ddu Cave / Sill

Graig Ddu (Black Rock ) is an intrusion of Volcanic Rock (Basalt) and folded metamorphic Rock
A number of Caves can be seen from the beach .
This , the most western cave shows a Sill with columnar jointing.
The Coast Path goes around Graig Ddu , but it may be possible to climb the rock face
and arrive near the location of the next photo.

Ref: NW 53

Date: 16/09/2021

Location: SH 5222 3742