Large imposing Catholic cathedral located a short distance from the waterfront, dating from the 12th century. It was closed the day of our visit. This is the church where Charles and Yvonne de Gaulle were married. Also on the grounds is a large cistern that was ordered constructed by Louis XIV to catch rainwater from the roof and to be used during periods of drought.

This church is only open in July and August to visitors, but it is well worth a walk to see it. It is unique and the amount of work that has gone into its ongoing restoration is quite breathtaking. There is lots of information about the artefacts and restoration in both English and French. The volunteers are helpful and polite. I could have spent a lot longer in here, but my children didn't find it quite as engaging as I did. The history of the church goes right back to 11th century and there is so much to absorb. The church also has a beautiful garden that you can walk.

We stay in Calais fairly often and have on a few occasions tried to visit this church without success. However on our latest visit pleased to say church was open!!
Historic location as was CDG marriage church and if the church looks like a church you have seen before that's because it is an English "style" church.Well worth a visit if you are in the area and of course if its open.