The Red route is the one I will be taking. St Jean Pied de Port is just on the French side of the Atlantic Pyrenees From Roncesvalles in the East. 

As you can see, there are a number of other routes through Portugal and Spain, and several travelling south through France, and converging at the Pyrenees. Since 2015, I think all or most of the El Camino routes are UNESCO world Heritage sites 

I first really became away of El Camino, or Le Chemin de Saint Jaques de Compostelle, as it is known in France, when we bought our first house in France. This was in the Charente Maritime near Saintes, north of Bordeaux. Saintes is one of the major way points on the most westerly of the French Chemins.

Later, another of the French routes went past the end of our lane of our house in the Tarn et Garonne, just north of Moissac, another major way point. Moissac has the most beautiful 11th century (I think) cloisters, a UNESCO world heritage site. We used to see the pilgrims labouring through the blistering summmer heat, or looking miserable in the pouring rain. I never really thought I would one day become one, albeit further south.