I definitely got the idea that a Walgreens test was questionable. Per Celebrity website, pre-cruising testing for VACCINATED guests 2 and older must show either a negative supervised antigen test result taken with 1 day of sailing or be tested at the terminal and receive a negative result ...
Or, free PCR - but it takes a day or two for results. Up to you. There's testing available all over Miami from chain pharmacies like CVS or Walgreens to private test sites to companies that come to you and so forth. https://www.miamidade.gov/global/initiatives/coronavirus/testing-...