Cobh ≠ Cork city centre
Cruise ships serving Cork almost always use Cobh. Cork city sits inland up the harbour. Budget road or rail time both ways before you count English Market minutes.
Guests who assume they can ‘walk into Cork’ from the gangway will lose the morning. Start with Cobh orientation, then decide on transfers.
Day patterns that work
Stay in Cobh for harbour, cathedral views, and Titanic-related attractions when hours are short.
Add Cork city, Blarney, or Kinsale only when the published window supports transfer + visit + return buffer.