Workshop will be held in building of AstroParticle and Cosmology laboratory (APC).
HERE you can find how to reach APC building within Paris. Walking distance from M14 station exit to APC building is 10 minutes. From RER C station take the 'south' exit ('Grands Moulins') and walk 5 minutes. Here is PDF file of local map with way to APC from station
APC is located in the building CONDORCET , which is shown on the map below.
Workshop will be held on "-1" floor in Amphitheatre "Pierre-Gilles de Gennes". 
