When on site

When on site

As everywhere at CERN, your safety and well-being are our top priority. We want all our visitors to have a safe and enjoyable experience and to leave CERN with lasting good memories. 

Below you will find some useful information for when you are on site. 

Conditions of entry 

Only guide and assistance animals are allowed in Science Gateway and on the CERN sites. 

We remind you that luggage and large bags are not allowed in CERN Science Gateway or on guided tours. Lockers for the storage of luggage are available near the Big Bang Café. 

Smoking is permitted only on the Piazza in front of the Big Bang Café patio.  


Taking photos for non-commercial purposes is permitted, provided that the privacy of other visitors is respected. Non-private or commercial photography/recording is only allowed by prior arrangement. 

Guided tours 

As they will enter the CERN fenced domain, all visitors participating in guided tours will be requested to provide their full identity: first name, last name, date and place of birth and nationality.  

For group tours, requestors will have to provide this information for all members of their party, no later than one month before the tour. 

During the guided tours, closed, flat shoes must be worn.  

Some areas are not accessible to people with reduced mobility, younger visitors, pregnant women, and wearers of pacemakers or other medical implants.  

For more information about the accessibility of CERN Science Gateway and of guided tours on the CERN site, read here