Zones 1-3 allow you to travel within the city of Paris, i.e. within the limits marked in yellow on the map. With zones 4-5, you can travel throughout the Greater Paris region, and venture even further, to Disneyland Paris, for example, or to Versailles and its chateau, as well as to the Paris airports.
Metro. The Paris Metro is our preferred way to get around the city when we travel around central Paris. This is because it is fast, affordable, has a regular service, and it covers the majority of the attractions in the city centre. The Paris metro system is currently made up of 16 lines and 302 stations.
Weekdays, the metro operates from 5:30 a.m. to about 1:15 a.m. On Friday and Saturday evenings, as well as on the day before a bank holiday, trains run until about 2:15 a.m. The RER operates daily from 5:30 a.m. to about 1:20 a.m.