Travelling by plane, from Geneva International Airport - Cointrin
Taxi - approximately 35CHF.
Bus - The International Airport of Geneva offers all arriving passengers a free "Tout Geneve" ticket, which is valid for 80 minutes, available from the automatic ticket machine situated in the baggage reclaim zone.
Take bus number 57 direction "Gare Vernier-Meyrin" and leave at the stop "Blandonnet". Then take the tramway number 18 until the final stop next to the CERN entrance.
See the TPG web site for full details.
If you arrive between 08h00 and 19h00 during the week, you might also use the CERN shuttle
Travelling by train, from Geneva Railway Station - Cornavin
Tramway and Bus - Take tramway number 14 towards "Meyrin-Gravière" and leave at "Bouchet". Take tramway number 18 until the final stop at the CERN entrance.
Ticket costs 3.00CHF (Ticket "Tout Genève" on the ticket machine). See the TPG web site for full details.
Travelling by car
Follow signs for "Aéroport", "Lyon" and "Meyrin". Once you are in Meyrin, follow signs for "St. Genis" (France). Before reaching St. Genis, the CERN site is on your left on "route de Meyrin", just before you reach the border.
From France (département of Ain):
Follow signs for "Gex" or "St. Genis". When you reach the border, CERN is on your right immediately after passing through customs.