By car: The drive from Dublin to Cornwall is approximately 6 hours and 30 minutes, depending on the route you take. The most direct route is to take the M5 motorway from Dublin to Cork, and then follow the A38 and A30 to Cornwall.
By train: There is no direct train service from Dublin to Cornwall. However, you can take a train from Dublin to London Paddington, and then change trains for a service to Cornwall. The total journey time is approximately 8 hours.
By bus: There is a direct bus service from Dublin to Cornwall operated by National Express. The journey time is approximately 12 hours.
By plane: There are no direct flights from Dublin to Cornwall. However, you can fly from Dublin to London Heathrow or Gatwick, and then take a connecting flight to Cornwall. The total journey time is approximately 3 hours.