Fodor's Expert Review Musée Archéologique Marin
On the same quiet square as St-Pierre, this intimate museum offers a fascinating collection of ancient amphorae gleaned from the shoals offshore, where centuries' worth of shipwrecks have accumulated. By studying this chronological progression of jars and the accompanying sketches, you can visualize the coast as it was in its heyday as a Greek and Roman shipping center. You should also take advantage of the several temporary exhibitions held across the year.
You can use QR codes throughout the museum as a guide; iPads can be borrowed from reception too.