Construction
On 6 September 2016, Carnival Corporation announced that it had signed an agreement with Meyer Werft for a 5,200-passenger vessel for P&O, scheduled for a 2020 debut.[11] The vessel, planned to be the largest in P&O's history, at approximately, would also be powered by LNG, making her the first LNG-powered ship dedicated for the British market.[11] It was later reported that the engine room unit for the LNG tanks for Iona was constructed separately at Meyer Werft's sister yard, Neptun Werft, in Rostock.[12] On 27 October 2016, P&O announced that the public would be invited to name the new ship.[13] On 24 May 2018, it was announced that the name Iona, after the Scottish island of Iona, had been chosen from 30,000 submissions.[14]
On 25 April 2018, construction for the ship began with the steel-cutting ceremony in Papenburg.[15] On 29 May 2019, the ship's keel was laid to mark the official assembly of the hull.[16] At the ceremony, a bronze coin from Iona Abbey and a piece of green marble from Iona was laid under a keel block that measured 21.5 m long, 19.4 m wide, and 9.8 m high, and weighed 461 t.[16] The block was then lowered into the building dock.[17] In August 2019, the 105-ton, 340-pane glass dome set to become the "Skydome" was raised onto the ship.[18] By the end of the month, the bow and midsections were joined together.[19]
Iona was floated out of the dry dock on 14 February 2020.[20] She went through final outfitting in wet dock before her River Ems conveyance to Eemshaven on 18 March 2020 and her sea trials in the North Sea were set to follow shortly after.[20][21][22] However, on 20 March 2020, Meyer Werft announced that the ship had been moored in Bremerhaven and all interior work and trials would be halted, due to the COVID-19 pandemic.[23] Later, on 26 March 2020, following discussions with Bremerhaven port and medical authorities, Meyer Werft explained that work would resume, but at a reduced pace, given the reduction in crew and resources.[24] On 30 May 2020, Iona departed from Bremerhaven for Rotterdam for a sea trial and entered dry dock at Damen