June 17. The CDC’s move from “Level 4: Very high level of COVID-19” to “Level 3: High level of COVID-19” recommends travelers who have received a full coronavirus vaccination should avoid river and ocean cruises.
Health officials also said due to the ease of transmission in small areas, travelers with an increased risk of severe illness should not travel on cruise ships, including river cruises. The CDC update states that unvaccinated passengers who decide to take a cruise should get tested 1–3 days before their voyage and 3–5 days after their trip.
In addition, passengers not fully vaccinated should self-quarantine for seven days after cruise travel if they receive a negative test result and 10 days if they do not get tested. The CDC originally raised the warning level for cruise ship travel to its highest point of Level 4 in November 2020.
Source: Travel Pulse