You don't need to be of strong faith to appreciate the tranquil atmosphere of Saint-Sauveur Cathedral. Check when the next service is scheduled or when you can go for a wander through.
Saint-Sauveur Cathedral is the perfect place to start out your day in Aix-en-Provence Historic Centre. This principal church is recommended by fellow travelers, but it isn't the only thing to do here. Allow some time for other sights like Cours Mirabeau, Place des Precheurs, and Hôtel de Caumont - Centre d'Art to fully appreciate what the area has to offer.