Considering the Escale Oceania Saint Malo in Saint-Malo?
A VT member wrote the following comment about visiting Saint-Malo:
Boat tour in the bay by Beckhanne
Very nice way to discover the surroundings and to learn about the history of the city thanks to the boats of the "Compagnie Corsaire". There are several departures throughout the day. The tour itself takes 90 minutes but you can also choose other destinations, including Dinard - which is right opposite Saint-Malo when you embark - or the island of Jersey. See my travelogue Saint-Malo bay for more pictures.