Guests will need to provide proof of vaccination before embarkation, including evidence of having received both vaccine doses if required by the manufacturer.
At least a full 14 days must also have elapsed since their full inoculation.
A vaccination requirement forms part of the line’s new Crystal Clean+ 4.0 measures, which includes negative Covid tests for guests and crew, pre-departure temperature checks, what it describes as a "nimble" mask policy, some social distancing, enhanced cleaning and disinfection, reduced capacity, and other protocols.