Carnival subsidiary Holland America Line has sold four cruise ships, Amsterdam, Maasdam, Rotterdam and Veendam.

The ships were sold in pairs. S-Class Maasdam and Veendam ships will be transferred to an undisclosed company next month.

Norwegian company Bonheur has acquired the R-Class Amsterdam and Rotterdam and will be transferred in the next few months.

The cruise ship operator has cancelled the sailings on the four ships and some of the itineraries will be undertaken by other ships.

The 2021 Grand World Voyage on Amsterdam has been postponed until 2021 and will sail on board Zaandam.

Additionally, Grand Africa Voyage that is scheduled to depart on 10 October 2021 will sail on Zaandam on the same dates.

Maasdam joined as the second of four S-Class ships in 1993. It has the capacity to accommodate 1,258 guests.

The final S-Class ship, 57,092t Veendam, was delivered in 1992 and can accommodate 1,350 guests.

The first R-Class ship, 61,849t Rotterdam, was delivered in 1997 and has a capacity of 1,404 guests.

In 2002, Amsterdam, the final R-Class ship, weighing 62,735t, joined the fleet and can accommodate 1,380 guests.

Rotterdam and Amsterdam will be operated by UK’s Fred Olsen Cruises. The vessels will now operate as Bolette and Borealis.

Holland America Group and Carnival UK CEO Stein Kruse said: “It is always difficult to see any ship leave the fleet, especially those that have a long and storied history with our company.

“However, Holland America Line has a bright future ahead that includes recent Pinnacle-Class additions with a third sister ship next year that will continue to maintain our overall capacity in the marketplace.”

Last week, Carnival announced plans to sell 13 ships from its fleet this year amid the Covid-19 pandemic.

Earlier this month, P&O Cruises sold the Oceana cruise ship, which is one of the oldest ships in the fleet.

Last month, Carnival announced that it will sell six ships in the next 90 days to deal with a $4.4bn loss in the second quarter of this year.