What do a multi-millionaire businessman from San Francisco, a secretary from Germany, and a nuclear physicist from Canada all have in common? All took a month off from their lives, travelled to Spain, and walked 500 miles across the country following an ancient pilgrimage trail. None of the three are the outdoor type, none marathoners, none prone to long distance trekking. I know of their journey because I walked the 500 miles as well, at times traveling with each of these three. The difference for me is I walked the 500 miles twice.