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.
Enjoy a stress-free sailing and take advantage of everything your ship has to offer.
They'll celebrate the 80s, Elvis Presley and more.
Travel to The Netherlands or Belgium this May and save up to 25% per person on selected sailings.