Imray's Y18 charts cover whole of the River Medway from Sheerness to Rochester. Small scale inset scale 1:55,450 of Thames Sea Reach and larger scale plans of Hoo Marina and Gillingham Marina. The latest depth surveys have been applied along with general updating throughout. The secondary Yantlet Channel is shown.
Y18 chart pack includes:
Whitton Marine (1:6000)
Port Werburgh (1:6000)
Gillingham Marina (1:10 000)
River Medway Continuation (1:25 000)
- Margin:
- 35-40