Anyone who traveled to Paris a few years ago and stayed for a week or a month was able to buy a “Carte Orange” travel pass. Le passe Navigo is the electronic version of the old pass. In September 1, 2012, STIF instituted a “dézonage” for monthly/annual Navigo pass holders. Between Friday midnight and Sunday midnights and holidays midnight to midnight, Navigo users can travel to the furthest zones without paying an extra tariff. If you will be staying in Paris for a month or more or are returning often to Paris, apply for the le passe Navigo découverte. When you plan to do more than four trips on public…