Hotel closed to the conference site:
La Cour des Augustins :
http://www.lacourdesaugustins.com/french/index.html
Ramada Encore Genève :
http://www.ramadaencoregeneve.ch/fr/
We recommend some hotels not so far from the CUI:
Le Grenil: http://www.grenil.ch/flash.html
La comédie: http://www.hotel-comedie.ch/
Otherwise you can find a list of hotels for your need at:
Easy to reach: