Airports :
Roissy-Charles de Gaulle : RER line B, get off at Saint Michel-Notre Dame station
Orly : RER line B, get off at Saint Michel-Notre Dame station
Railway stations :
Gare du Nord : Bus 47, get off at Notre Dame stop
Gare de l'Est : Bus 38, get off at station Les Écoles stop
Gare Montparnasse : Subway line 4, direction Porte Clignancourt, get off at Saint Michel station
Gare de Lyon : Bus 63, get off at Collège de France stop
Gare d'Austerlitz : Bus 63, get off at Collège de France stop. Subway line 10, direction Boulogne-Pont de Saint Cloud, get off at Maubert Mutualité station.
Gare Saint Lazare : Bus 21 or 27, get off at Les Écoles stop
