For underground visits, the applicable age and other visitor restrictions depend on the radiological classification of the underground visitor path. When the visitor path is classified as a Supervised Radiation Area, visitors under 16 years old and pregnant women are not allowed to take part in underground visits. When the visitor path has been formally declassified and is operated as a non-designated area, the general CERN requirements applicable to Private Guided Visits apply.

Visitors with implanted active electronic medical devices, such as pacemakers or insulin pumps, are not authorized in underground areas where prohibited due to magnetic stray fields.

The ALICE underground visitor path is not suitable for wheelchair users. Visitors who require crutches for mobility are not permitted to visit the Cavern due to potential safety risks during an evacuation.