I’ve recently been reading about a French Canadian guy who decided one day to walk around the world; that in itself should be inspirational. If he can do that then walking to Spain from Switzerland should be quite easy for me!
His name is Jean Béliveau (not to be confused with the ice-hockey player) who, in 2000 started walking and didn’t finish until 2011. He visited 64 countries, travelled 75,000 kms and went through 54 pairs of shoes! I attach his website here…also available in other languages.