Well, I have downloaded and looked at map, stations, schematic diagrams, but can't find how to get there by underground, Le Metro. The plan your journey website doesn't seem to let you put in beginning and end of journey and then give you a list of what to do. I will be at Gare du Nord and want to get to Rue Colonel de Rochebrune ( I am prepared to walk there from Rueil Malmaison station). But how do I get to Rueil-Malmaison please? Help please. I can read French as well as English. I just don't speak or compose French very well. No hurry, I won't be in Paris until early October.