This
edition includes the latest official data combined with additional information
sourced from Imray''s network to make it ideal for small craft. It includes the
latest official bathymetric surveys and the latest windfarm information.
Suggested routes showing popular passages across the chart have been updated.
Further pilotage information on these routes are included in the North Sea
Passage Pilot by Garth Cooper published by Imray. There has been general
updating throughout.