Although many of the major sights in this chapter have train lines connecting them on direct routes with Paris, the lesser towns and destinations pose more of a problem. You often need to take a local bus or taxi after arriving at a train station (for instance, to get to Senlis from Chantilly Gare SNCF, or Fontainebleau and Barbizon from Avon Gare SNCF, or Vaux-le-Vicomte from Melun Gare SNCF, or Giverny from Vernon Gare SNCF). Other buses travel outward from Paris's suburbs—the No. 158A bus, for instance, which goes from La Défense to St-Germain-en-Laye and Rueil-Malmaison.
SNCF (36-35 EUR 0.34 per min. www.transilien.com).