RER is the fast suburban commuter system which has four lines running across Paris and into the suburbs. Within Paris, the RER connects some stations faster than the Metro as they have fewer stops. The four lines are : Line A (connects Disneyland Paris from Chatelet-Les-Halles) Line B, Line C and Line D. You can use the metro ticket to take the RER within Paris. The RER lines (A, B, C, D) run from 5.30am to 1am daily.

       The RER is divided into five zones. Versailles in in Zone 4, and DisneyLand Paris is in Zone 5. A zone map can be obtained from the ticket agent. Zones are also clearly marked on maps found on the RERtrains.