From there it takes a day. If you want to come by car it is a very good and clever option to plan visiting other places of Europe, from anywhere you had set up your starting point you will have the chance of visiting France and Spain. It is impossible to arrive to Galicia by land withouth crossing these countries. After a long journey of lonely, sunny plain land, you will find round mountains and more green round mountains. If you happen to travel from Africa you can enter via Andalousian Spain.
Controls are quite strict.
There is not a good comunication system or direct motorways yet as the comunication axis there is the Mediterrenean coast. The best option will be 1 Cadiz or Sevilla to 2. Madrid or Lisbon and from there 3. As far as we know, we have no news of people doing or even being able to do this route in a regular way. If you do please contact us, we will be happy to hear from you.