The changes – which are due to be completed by May 2023 – will include new balcony furniture, new chairs in cabins, as well as new furniture on the ships’ open deck areas.
On Arcadia, the Neptune Pool will also see investment with new lounge chairs, sofas, tables and armchairs.
Arcadia’s wider refit will take place in November 2024 and Aurora’s is scheduled for April 2025.
P&O Cruises president Paul Ludlow said: "Arcadia and Aurora are two of our most beloved ships in the fleet offering guests a more intimate experience in stylish surroundings.
"After a busy season hosting guests on longer duration itineraries and world cruises, we will be making sure that both ships look their absolute finest ahead of the summer season."
P&O Cruises’ recently announced travel agent ship visits programme will include time onboard Arcadia on 29 August.
