3 - Aberdaron to Porth Oer
Porthorion - 1
The inlet at Porthorion with Sea Caves
Jasper is found here - mined at Carreg Quarry, (near the Coast Path)
Dinas Fawr (formed of pillow lava), is joined at low tide to the mainland.
Ref: NW 248
Date: 11/10/2021
Location: SH 1567 2865
