Camping des 4 Vents is a short drive from the rail station adjacent to Disneyland Paris. When we stayed there a few years back we travelled into central paris several times. About 45 mins by train if my memory serves me correctly.
C4V is a pleasant rural campsite much favoured by those visiting Disneyland. It is set in a former orchard in a quiet village and has a pool and good range of facilities. You can read my, and others review, on ukcampsite.co.uk.
I agree with the comments about camping 4 vents. Another option is near senlis just north of paris. The site is called CAMPIX and is set in an old quarry, with lots of pitches. we have used it a few time and it is handy to Paris by train/per. Also handy for ASTERIX theme park. It has a swimming pool(new) and is about 25 euro a night.
Stayed for just one night a couple of weeks ago on the way home ... great.
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