CERN — The European Laboratory for Particle Physics

Details on the number of visitors per group

  • 10 visitors per non-school groups

  • 10 visitors per school groups including an accompanying adult

  • 6 visitors per school groups that do not have an accompanying adult

  • The cavern is not accessible for minor under 16 years old.

Please note that there is however a practical restriction, the child has to be big enough to have a helmet fit on her/his head and pass through the access system.