El Camino de Santiago (The Way of St. James) is a network of ancient pilgrim routes that ends at the tomb of Santiago (St. James), in northwest Spain, in the city of Santiago de Compostela. El Camino Frances is the most popular and is the one that starts St. Jean-Pied-du-Port near Biarritz in France, going through the north of the Iberian Peninsula until Santiago de Compostela. El Camino de Santiago and Kumano Kodo Pilgrimage Routes, in Japan, are the two pilgrimages on the UNESCO World Heritage List.
The route that comes from Portugal starts in Lisboa, but most pilgrims start their trip in Porto or in Tui. This route is not as crowded as the french or the Spanish routes, but is one of the most popular routes in terms of the number of pilgrims.
El Camino de Santiago was originally a religious pilgrimage and where nowadays you can find pilgrims from all over the world with completely different beliefs or backgrounds that just want to find some peace of mind.