Plans included:

Conwy (1:30 000)
Conwy Bay (1:60 000)
Holyhead (1:27 500)
The Swellies (1:15 000)
Port Dinorwic (1:15 000)
Caernarfon (1:15 000)
Menai Strait (1:60 000)
Porth Dinllen (1:17 500)
Abersoch (1:15 000)
Pwllheli (1:15 000)
Porthmadog (1:10 000)
Mochras Lagoon (1:15 000)
Barmouth (1:30 000)

This edition includes the latest official UKHO data, combined with additional information sourced from Imray''s network to make it ideal for small craft. The chart has been fully revised throughout. The harbour plan of Holyhead has been reschemed to a scale of 1:27 500.
The chart includes charting and tidal data for passage, approach, and mooring, and is designed to be used alongside Cruising Anglesey and adjoining waters by Ralph Morris and the Irish Sea Pilot by David Rainsbury, both published by Imray.