I'm planning to visit Paris in April and was wondering if you could help me decide what ticket to buy in order to travel with public transport. I'm travelling on Thursday from Charles De Gaulle airport to my hotel, Ibis Montamarte and going back to the airport on Monday. Between those days I also go around Paris a lot ( Disneylan, Versailles etc ). Which would be the most reasonable and cheapest way to go? It would be great if the ticket consumes RER and metro.
Thank you so much!