Apologies if this has been covered many times before but I'm looking for up to date information. We're adding a day in Paris and 2 at DLP onto our camping holiday but staying in a mobile about 25 minutes from DLP (Camping les Etangs Fleuris, Touquin). I think I've read somewhere that it is possible to park at Val d Europe for free and get the train. Is this correct? If not are there any other RER stations where it is possible to park?
Trying to avoid huge parking charge and long walk from DLP car park.