The RER

This is the urban - suburban train so study its route before you board.  It’s primarily a suburban line but it’s fantastic for getting around Paris if they’re located near your apartment, because there are fewer stops than the regular métro.  We’re lucky because most of our apartments are located near to an RER stop.  Best yet, if you’re traveling within Paris – such as your apartment to Notre Dame, you just use a regular métro ticket.

• Website: http://www.ratp.fr