LOOK AT THE TIMESTAMP FIRST
Find the ship. Understand the report.
Open a tracking service, confirm the vessel and check when its position was last received. A marker is not always a live location.
A USEFUL DISTINCTION
The latest position report, a planned arrival time and passenger disembarkation are three different things. Use the cruise line for confirmed travel instructions.
Why might a ship disappear?
Coverage and update frequency vary. Check the vessel identity, data source and report time before drawing a conclusion from a missing marker.