Connect with your spiritual side and meet other worshippers at Eglise Notre Dame. Quietly reflect outside for a few moments or find out if you are allowed to join the next service.
You'll be spoiled for sightseeing choice in Calais City Center. Eglise Notre Dame is a great place to begin here, but there are numerous other worthwhile spots to consider. Musee des Beaux-Arts et de la Dentelle, Les Six Bourgeois, and Calais Beach are close to the house of prayer and and will cap off your day nicely.