Every day you have TGV lines from Paris to Vannes.
Further informations : https://www.sncf.com/en
Since the train station use the line n° 6a direct stop to "Université".
Further informations : https://www.kiceo.fr/
Since Rennes use the roads RN24 to Ploërmel and RN166 to Vannes,
If you come from Brest use or the RN165 road .