Like in a vision, you will see a medieval citadel rise above grassy fields and wet sands. As you approach, it grows larger and more solid, until it looms above you, a mass of rock, walls, buildings — and one solitary spire pointing at heaven.
Cross the gates, climb the narrow streets. You will hear from your guide the story of a place which has attracted pilgrims for hundreds of years. Drink in the gothic purity of the church, savour the peace of the cloister. And discover the romanesque Chapel of Our Lady Underground, open only to a few visitors.