Starting between 13 February and 22 April, cruises onboard three Medallion Class ships will sail to the Caribbean, Hawaii and the California coast.

Crown Princess, Island Princess and Royal Princess will join the line’s eight ships scheduled to restart in 2021, representing 79% of Princess’s capacity.

On 13 February, Crown Princess will join Majestic Princess and Grand Princess for sailings from Los Angeles to the California coast and Hawaii. It will then position in Seattle to sail Pacific Northwest coastal voyages and to Hawaii.

The vessel will also add another Alaska departure with a new eight-day "Inside Passage" cruise with Glacier Bay starting on 29 April.

Island Princess will sail to the Caribbean from 6 March and then from Fort Lauderdale on a 14-day, 10-day and series of seven-day cruises to the southern, eastern and western Caribbean.

Royal Princess will offer California coast sailings from Vancouver from 8 April.

Deanna Austin, princess cruises chief commercial officer, said it has been "thrilling to have our guests onboard enjoying real vacations in Alaska and on the west coast".

"By April 2022 we will have 11 of our ships back at sea, with the support of government and port officials, creating vacation memories for our guests," she added.