Pickpockets and bag-snatchers are rife on the network – pay special attention as the doors are closing. The five RER lines (A, B, C, D and E) run 5.30am-1am daily through Paris and out into the suburbs. Within Paris, the RER is useful for faster journeys – Châtelet-Les-Halles to Gare du Nord is one stop on the RER, and six on the métro. Métro tickets are valid for RER journeys within zones 1 and 2.
For the detailed official Paris métro map, click here.
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