Actually I didn’t ask anyone about their vaccination status. None of my business.
This is what is says on the website. You should call Celebrity if you have any further questions.
Cartagena, Colombia
Vaccination
While vaccinations are not required to sail on Celebrity Cruises, they are highly recommended.
COVID-19 booster shots are also not currently required but remain highly recommended.
Please note: A guest is considered fully vaccinated 14 days after the required number of doses in their vaccine series have been fully administered (e.g. 2 shots of Pfizer, Moderna, AstraZeneca, etc., or 1 shot of Johnson & Johnson). Vaccines must be approved for use by the WHO or U.S. FDA, with the exception of CanSino.
Testing
To travel in Cartagena, unvaccinated guests ages 18 and older are required to provide proof of a negative PCR taken within 72hrs prior to embarkation or negative antigen test taken within 48hrs prior to embarkation.
Required testing can be completed using any type of PCR or antigen COVID-19 test. It can be professionally proctored at your doctor or drugstore, or it can be a test you administer to yourself at home without supervision.
Tests must be arranged on your own and are at your own expense.
Guests who do not meet the testing and health screening policy requirements will be denied boarding.