4 - Trearddur to Holyhead
North Stack Headland
North Stack (Ynys Arw) is the small Island ,
The Island gives its name to the peninsula / headland.
Parliament House is the large 75 ft. high arched Cave in the headland.
Ref: NW 791
Date: 29/04/2022
Location: SH 2085 8256
