Guests will continue to be required to test ahead of the cruise for the remainder of 2022 departures. Pre-embarkation testing is accepted either with a Rapid Antigen test carried out up to 48 hours before embarkation or with a PCR test carried out up to 72 hours before embarkation. As of 2 March 2023, the requirement for pre-embarkation tests will no longer be in effect.
Further Information can be found at: https://celestyal.com/gb/new-embarkation-protocols-greece/
All above information is valid as of 26/10/2022