
Several trains depart from the St Lazare Station in Paris for Rouen on a daily basis. Tickets cost around 20 euros and can be purchased at the station immediately beforehand. For schedules, visit www.voyages-sncf.fr
Note that the train posting in Paris St-Lazare can be confusing to the first time traveler. The train line number ("la voie") is not posted unil 15-20 minutes before the departure, so do not panic if you arrive earlier than that. Look for the train heading to Cherbourg. Caen will not be the listed destination, as it is a stop along the way. Do not forget to punch ("composter") your ticket in one of the yellow machines before boarding. This will validate your ticket.
The city center is compact and all sights can easily be seen by foot. There are city buses as well as a light rail line.