I have been ready tens of messages int these forums and unfortunately I have no clear the best way to do what I need:
I will arrive to W Terminal (Orly) around 14:00 on a Sunday with 1 carry on, and need to go to Paris (Denfert-Rocherau metro station)
I plan to by the Paris Museum Pass at the airport
I was hoping to buy at the airport too a Paris Visite for the next days transportation within the Ile the France, plus whatever pass I need to take public transportation from the airport to my destination.
Next Sunday I will taking a 07:40 international flight in Orly again and need to define/schedule transportation.