Brittany strings the granite coast of the Côte de Granit Rose, Saint-Malo's intra-muros walled town, the Pointe du Raz at France's western end, and the Carnac standing-stone alignments older than Stonehenge.
Rose granite coast in flower, Saint-Malo walking comfortable, and Cancale oysters at peak with the Brittany seafood season fully underway.
Festival Interceltique de Lorient runs ten days early August, Carnac alignments accessible without summer's parking pressure, and the Île de Bréhat boats running their full schedule.
Atlantic still warm enough for swimming into mid-September, Saint-Malo Étonnants Voyageurs literary festival, and oyster harvest at Cancale in full operation.
Atlantic storms hammer the Pointe du Raz, but Saint-Malo's intra-muros stays year-round, and the Pardons (Breton religious processions) run from late spring.