What exactly is a "ship"?

Chris Kidd, of CJC, discusses the legal definition of a ship and how that varies according to jurisdiction

As courts of various jurisdictions have found for the last 150 years or so, questions that are easy to ask - such as "what is the definition of a 'ship'?" - are not always so easy to answer, at least for the purposes of invoking the jurisdiction of their courts to arrest a "ship" in relation to the (quoting Moby Dick) "many a quaint craft" that have put to sea.