Patron saint of sailors, St Nicholas very early on gave his name to this parish situated close to the port. The façade of the building was reworked in the 18th century but parts of the choir date from the 13th century making this the oldest religious building in Boulogne...

The Place Dalton is dominated by the Church of St Nicholas and vibrates to the sounds of the colourful and bustling market, which takes place here every Wednesday and Saturday morning.

Around the outside and in the little 'rue du Doyen' numerous restaurants contribute to the hustle and bustle of the town centre.