March 25 is the day of the Annunciation and Arcachon?s patron saint?s day.
To celebrate them, a religious ceremony is held at the Basilique Notre-Dame d?Arcachon, followed by a procession
followed by a procession of yellow flowers to the Chapelle pier and its Sailors? Cross.
This solemn, emotional moment celebrates Arcachon?s origins, while honoring the memory of sailors lost at sea and their families
and their families.