|US Coast Guard photo.|
- A vessel that is haunted or is itself ghostly. The most famous example of this is the legendary Flying Dutchman.
- A vessel drifting but with no crew. The most famous example of this is the Mary Celeste, an American brigantine found under sail off Portugal in December 1872 with all her crew and passengers and one life boat missing, but otherwise completely intact. More recently, the Tai Ching 21, a Taiwanese fishing vessel with a crew of 29, was found floating off Kiribati in November 2008. There had been a fire, and several lifeboats and rafts were missing, but there was no sign of the crew.
- A vessel decommissioned but not yet scrapped. The most notorious example of this may be the French aircraft carrier Georges Clemenceau, decommissioned in 1997 but not dismantled until 2010 due to environmental concerns.