There are two main forms of rail transport in Paris, they are the Metro and the RATP, however they do connect with each other and are easy to manage. The RER is the suburban express railway and it operates on lines A,B,C,D, and E. The RATP and SNFC cover Paris and regional areas.

There are 16 lines and they are colour coded, Metro operates on the numbers system and the RER operates on a letters system. Both systems commence at 5.30am and go right through until 12.30am. The platforms have the name of the station highlighted. The stations are close together and come around pretty quickly, so you need to be ready to disembark at your stop.

There are free maps available at most stations.