The CNRS campus of Gif-sur-Yvette is located at about 30km south-west from Paris, and is accessible from Paris, by the RER B, "Gif-sur-Yvette" station.
- From Roissy airport :
Take RER B towards Saint-Rémy-lès-Chevreuse. One train every 15 minutes. Get out at "Gif-sur-Yvette" station.
- From Orly airport :
Go to Antony station via Orlyval train, then take RER B towards Saint-Rémy-lès-Chevreuse, until "Gif-sur-Yvette" station.
- From Paris-Gare de Lyon :
Take RER A to Saint-Germain-en-Laye. Change at Châtelet and take RER B towards Saint-Rémy-lès-Chevreuse until "Gif-sur-Yvette" station.
It takes 10-15 minutes to walk from the "Gif-sur-Yvette" station to the CNRS campus.
Metro-RER-Bus Transport information:
Please visit this link; you may find intersting options and prices with the Navigo week-pass.
CNRS - Délégation Ile-de-France Sud
Avenue de la Terrasse
On the following map all the important places (SSNET site, RER station, hotels, pedestrian directions) are indicated:
Have also a look on this pdf file to see more details about the Gif Campus.