A few days ago the new high speed train service (AVE) between Madrid and Barcelona was introduced. Could be useful for someone trying to get to/get home from the camino.
Some more information:
— 17 departures daily Madrid to Barcelona (and another 17 going back)
— Duration: About 2 hours and 40 minutes (speeds up to 300km/h)
— First train leaves at 06.00, last at 21.00
— Regular price varies between about €100 and € 160
(Note: If you book online at least 15 days ahead may get you a ticket for as low as €40)
This promotional video shows the train and the trayectory that the new rout takes:
More on the RENFE website.