The Paris-Chartres Pilgrimage occurs every year on the Feast of Pentecost in early summer, and is a multi-generational, multi-national gathering of Catholics who draw closer to God through the centuries-old act of pilgrimage.

The walk is roughly 62 miles over 3 days—beginning at daybreak on the Saturday before Pentecost, and ending with an afternoon Mass on the Monday after Pentecost. The trek takes 8,000-10,000 pilgrims from Saint-Sulpice in Paris (instead of the Cathedral of Notre Dame, because it is still being repaired) through the French countryside to the Cathedral of Notre Dame in Chartres. Participants brave the weather, blisters, and humble food and accommodations as an act of faith and an act of reparation in these modern times.

The theme for the Pilgrimage each year changes, commemorating various spiritual events.