Train: TGV Paris/Rennes/Lamballe.
Journey time about 3 hours.Lamballe station is 25 km from Matignon.
Three trains a day in July and August.
More info on voyages-sncf.com
Bus from Lamballe to Matignon. More info on www.tibus.fr
Plane: Pleurtuit/Dinard Airport (22 km) and St-Brieuc Airport (50km).
Boat : car ferries Portsmouth-St-Malo. St-Malo port is 30 km from Matignon.