Bolette’s arrival in Rosyth on Thursday (18 September) brings all four current Fred Olsen ships together for the first time.

It comes after the line announced in July it had acquired two new larger ships from Holland America Line.

Over the past fortnight, Fred Olsen has set out its plans for Bolette and Borealis, which will take over from Boudicca and Black Watch.

Peter Deer, Fred Olsen managing director, said: “It is wonderful to have sister ships Bolette and Borealis together in the same place, joining the rest of our fleet.

“They have already had such a warm welcome from our guests, who have been following our virtual cruising programme on Facebook and on our website.

"Now, we can get to work getting both ships ready for when our guests step aboard for the first time.

“This is a hugely exciting time for us, and taking ownership of these ships is a clear indication of our plans to bounce back stronger than ever, once the time is right to start sailing again.”

Cruises for Bolette and Borealis, which are scheduled to start from March 2021, are now on sale.

Bolette’s maiden voyage will be a seven-night Scotland and Northern Ireland cruise from Southampton on 5 March 2021. This will be followed by two further UK cruises before it departs for the Azores and Madeira over Easter.

Its inaugural programme will include itineraries previously scheduled for Boudicca, with a number of new sailings added. Bolette will operate predominantly from Dover.

Borealis, meanwhile, will sail "almost exclusively" from Liverpool in 2021 and 2022.