Replacing it is the brand-new 5,200-passenger ship Iona and an as of yet unnamed vessel.
Carried out in conjunction with conservation charity ORCA, it's part of a larger effort to monitor the Irish Sea's marine life.
Guests won't have to pay the £7 a day from May 2019.
The improvements will allow it to accomodate P&O Cruises new ship Iona when it launches in 2020.
The public voted them Best Ferry/Minicruise Operator and Best Ferry Booking Website.
It'll sail from Hull to Rotterdam between 9th and 10th March.
19 new stores will be opened across 15 P&O ships.
The global port operator originally purchased it back in 2006.
Book a Dover to Calais day trip with P&O by 17th June 2019 and recieve 6 bottles of Banrock wine on your outwards journey!
Travel to The Netherlands or Belgium this May and save up to 25% per person on selected sailings.
With this fantastic motorhome offer you can travel across the Irish Sea on a P&O ferry from Cairnryan to Larne midweek for the same price as a car.
Simply book by 18th December 2019 for travel until 20th December 2019
Whether you’re thinking of taking a regular trip or a new adventure on our Irish Sea route from Cairnryan to Larne then NOW is the time to book, as for a limited time we’re offering an amazing 15% discount on your booking!
Sail between Cairnryan and Larne and take your Caravan for FREE when travelling on a midweek ferry. Book by 18th December 2019.