Michael,
We are talking about the "Camino de Santiago de Compostela" or ...in your case...S.James Walk...or...S.Jacobweg...
It something people does since near 1.000 years...
San Francesco did it in the year 1200....
There are various CAMINO but the most walked is the one I did: the Camino Frances or French walk. Leaving from Saint Jean Pied de Porte(France) to Santiago de Compostela(Galizia, Spain) are something like 818 km or...500 miles.
Hundreds of thousands "PEREGRINOS" walk this way every year.
You should see the movie "THE WAY" with M.Sheen....I think
It is a great experience I suggest to everybody...once...in your life.