The line’s “best sale ever", which runs from 20 December to 2 March, offers sailings leading in from £499pp for a seven-night cruise with a £50 deposit, applicable on 1,500 cruises up to April 2022.

As part of the sales push, guests can also choose to add a package for £35pp per day covering premium drinks, unlimited Wi-Fi and gratuities, which the line estimates to be worth £70.

The package is commissionable for agents and can be added to retail fares and existing Princess bookings for customers who have already booked.

Included in Princess’ wave campaign offers are voyages onboard its Southampton-based ship Crown Princess, which sails from May to November next year to destinations such as the Mediterranean, Canary Islands and northern Europe.

Also included is Island Princess, which will sail out of Southampton from June to October to northern Europe.

Tony Roberts, Princess’ vice-president UK and Europe, said the line wanted to “keep things simple” for consumers and agents.

“It’s a simple, fantastic value offer which we think will be really attractive,” he said.