How to come to the Orsay Mathematics Institute

To come to Orsay, take the RER B at the rear of the train to Saint-Rémy-lès-Chevreuse, as far as Orsay-Ville. On exiting, take the underpass on the right.  The Institut de Mathématique d'Orsay (IMO) is a two-minute walk from Orsay-Ville station.

After walking down from the station, on your left, you will see the Orsay Conservatoire. Walk alongside the Conservatoire and cross the Yvette. The Institut de Mathématique d'Orsay is the white building on the left just after the bridge.