Take bus 68 (direction: Blandonnet). There is a bus stop at the entrance to CERN.
Tram from Geneva
Take tram 18 and get off at the last stop (”CERN”).
*If you are staying at a hotel in Geneva, it may offer free public transport cards.
Car
A paid car park is located behind the Globe of Science and Innovation. Please note that parking is allowed only for the duration of your visit. If this car park is full, an alternative paid car park is available by the French customs at the Centre sportif de Maisonnex.