I need some help!! I am coming to Paris on Sunday 15th in the morning this week and i will leave on Saturday 21st in the afternoon. I am looking tha Paris Navigo and the Paris visite passes and i am really confused.I don't know what is better for me to buy. Please can anyone advise me what to do??? Navigo is cheaper?But can i buy it on Sunday when i arrive to the airport? Please give me some details because i am coming as a tourist and i want to be informed.