
An Empty AIS Screen Does Not Mean an Empty Sea
Understand what AIS can leave out, distinguish a transmitted report from a complete traffic picture, and prepare useful questions for a sailing instructor.
The coastal journal
Sailing language, quiet harbours and the things you notice when you slow down. An almanac for curious minds, afloat and ashore.


Understand what AIS can leave out, distinguish a transmitted report from a complete traffic picture, and prepare useful questions for a sailing instructor.

A harbour noticeboard can reveal the everyday organisation behind an attractive waterfront: meetings, services, temporary changes and local events.…

An old passenger ticket records an intended journey, but it does not necessarily prove that the named person travelled. That distinction matters when a…

A ship plan can look like several vessels laid over one another. Begin by identifying one labelled view and following it consistently; trying to understand…