Shame about it being booked,,, other recommendations of places / things to go –
Rennes on market day,
Vannes on market day,
(actually any French town on market day)
Carnac stones,
Carnac Plage (there’s a cracking ice cream place just back off the sea front road, basically come back one street from the sea to the one with shops on, walk up and down it and you can’t miss it. More flavours of ice cream than our three year old could cope with. She wanted to go back every day, and then every day when we came home.
Chateau De Josselin
Gulf De Morbihan is all lovely (on a nice day, it can be a bit breezy)
The Submarine Museum in the old german built submarine yards in Lorient is good if the weather’s a bit grim.
Mont St Michel is absolutely worth the drive to get there, be early and wear comfy shoes. I was carrying my daughter in her carrier and my feet were killing me at the end of the day after walking up and down those very steep streets all day!
I’d recommend buying a copy of the Eyewitness Travel Brittany book. It really helped us dig out some great places to go that were off the beaten track.