MSC Cruises has extended its Cruise with Confidence programme through to the end of summer 2022.
All existing and new bookings are covered by the programme, under which the line offers “a safe, flexible and enjoyable cruise holiday”.
The programme will be reviewed at the end of the summer season.
More than a million passengers have been covered so far, MSC said.
As part of the Cruise with Confidence programme, all passengers aged 12 and above must be fully vaccinated and tested prior to boarding all MSC ships.
For Red Sea Cruises, passengers aged eight and over must be double-jabbed against Covid-19 in line with a vaccine recognised by Saudi Arabia.
Cruises can be rescheduled free-of-charge up to 15 days before departure and fly-cruises can be changed up to 21 days prior to sailing.
All passengers and their bookings are fully protected by the required Covid-19 protection insurance, covering events such as testing positive before boarding or at any point during their cruise.
And passengers are free to disembark and independently explore ports of call where local regulations allow it.
Chief executive Gianni Onorato (pictured) said: “We were able to lead the restart of our industry in August last year thanks to a comprehensive and flexible health and safety protocol that was designed to adapt to the evolution of the pandemic ashore.
“With this we were able to continue to offer the highest level of protection to our guests, crew and communities where our ships call.
“With the pandemic continuing to evolve, we understand the importance of having clear information to reassure our guests that they can book a cruise with confidence and with flexibility to give them total peace of mind.”