Coral Expeditions has cancelled four Australian sailings due to a "rapid increase" in Covid-19 infections.
The affected itineraries are:
The line intends to operate all other voyages as planned with appropriate health risk mitigation steps.
All guests and trade partners impacted by the cancellations have reportedly been contacted by the company and offered the option of a 100% credit for a future cruise or a refund to the full value of their fare.
The line said: "The known characteristics of the Omicron variant create unique challenges for us and the travel industry in general.
"Our priority is of course to protect guest and crew health and the trust of our travel industry partners."
Coral Expeditions has extended the permitted window for pre-cruise testing to 90 hours to help facilitate timely results. Guests without a negative PCR test will not be allowed to board.
In response to the reduced incubation period of the Omicron variant and the reported pressures on GP networks, the line will also no longer require guests to undertake a GP screening seven to 10 days before departure.
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