The dinner will take palce at the
Cafe Papon
Rue Henri-Fazy 1, 1204 Genève
You can take the tram 18 from CERN and drop off to the stop at the stop Place de Neuve, after some 30min.
Then you can take a walk for few minutes towards the old town.
You can buy the tram ticket at the stop , or if you have a payment mentod stored in your phone you can send an sms to the number 788 with subjeect tpg1