By Car: From the motorway A13,A7,A6,A80,A83, follow the direction for Paris' centre. Then keep going toward Opera, Palais Royal Musee du Louvre. From Charles de Gaulle Airport: Take the RER B direction Saint Remy les Chevereuses and change at Chatelet, then take line 1 direction La Defense for 2 stops and get off at Palais Royal Musee du Louvre. From ORLY Airport: Take the RER B direction Mitry- Claye or charles de Gaulle and change at Chatelet, then take line 1 direction La defense and get off at Palais Royal Musee du Louvre.