Two poor American teachers will visit Paris next Wednesday to Tuesday (so Carte Orange is out!) We have a zone 4 hotel on the same RER line as CDG (our arrival airport). We hope to see the in-town sites, but want to visit Versailles and Disney.
Until 15 minutes ago, we had planned to just buy a carnet apiece, but I found a link that said it is a 12euro+ ride to Disney on the RER lines, and now after looking at this forum I fear the same for Versailles.
Should we buy a ParisVisite for the two days we plan to visit Versailles and Disney (Sunday/Monday)? Should we buy one for 4 or 5 days because of our suburb hotel, or can we truly ride all the way from city center to zone 4 hotel on one carnet ticket as the ratp site implies. (Apparently they reworked things on July 1, but having never visited Paris, I don't get the system.)
Thanks!