According to Government regulations (Government Gazette Β’ 5401/20-11-2021), for your entrance to the cave you will need to present one of the following documents and a photo ID (identification card or passport):

• Vaccination certificate valid at least 14 days

• Medical certificate of a COVID19 infection valid up to 6 months

Children from 4 to 17 years old must provide a parental/legal guardian declaration that the child has undertaken a self-test taken no longer than 24 hours.