The old harbour, with its bobbing pleasure boats, is Honfleur’s focal point. On the west side, quai Ste-Catherine is lined with tall, taper-thin houses – many protected from the elements by slate tiles – dating from the 16th to 18th centuries. The Lieutenance , at the mouth of the old harbour, was once the residence of the town’s royal governor. Just northeast of the Lieutenance is the Avant Port , home to Honfleur’s dozen fishing vessels, which sell their catch at the Marché au Poisson .