ORLY is an airport far out of Paris. Thats French. If you are not familiar with the French language, you should not go to Paris, or Orly if you are coming by plane. It is extremely difficult to find out how to get to the city. It is a train. You have to buy a ticket to travel. But the girl sitting at the ticket office speaks only french. You can maybe imagine there is a problem. Yours.
It is too far to walk. And to learn french.
Go to Holland instead. They have tullips.