I was searching the web for information of Santiago de Compostela and found this site that has waypoints that can be loaded into a person's GPS unit before they start the long trek along the Camino.
It also has a free software package called GPS Track Maker. The GPS track and photos can be saved. The saved track is compatible with ArcView and many other software programs.
Here is a sample of what the collected points for the Santiago walk found at the above website. The track has too many waypoints to show the entire map created by GPS TrackMaker. Clicking on one of the waypoints and then on an icon for the internet brings up a map of the area. Mapquest need to be programmed into GPS Track Maker to make this work correctly. I zoomed in ont a piece of the track and captured the section below that shows points along the way. They might be sightseeing points, hostel locations or places to eat. etc.... You should be able to find a map background that covers the route of the Santiago de Compostela and have these points plot out. I believe they are in WGS84 datum.