The vessel will enter service from May next year and homeport in Palma.
Tui Explorer is currently operating as Mein Schiff 1 for the German market and will be joined by Mein Schiff 2 in 2019.
In a statement, Tui said that Tui Explorer would join Tui Discovery and Tui Discovery 2 in helping to establishing the brand among UK consumers ahead of the operator’s re-brand later this year during which the Thomson brand will be dropped.
On sale later this month, Tui Explorer will sail four itineraries – Cosmopolitan Classics, Highlights of the Mediterranean, Magic of Spain and Mediterranean Secrets.
Ports of call will include Barcelona, Rome and Florence, as well as Naples and Lisbon.
Richard Sofer, Thomson Cruises managing director, said: “I’m delighted to unveil the name of Tui Explorer, our biggest and most exciting ship yet.
“As part of our continued modernisation and transformation strategy, and our commitment to offering choice and flexibility, we’ve created a whole host of new spaces onboard to meet our customers’ needs.
“We’ve got ten restaurants and ten bars, as well as more onboard activities and spaces for families including an indoor cinema and a fantastic new Kids’ Club with children’s pool and slide.
“I’m also really excited about our new flagship entertainment venue, Indigo – a huge space with incredible ocean views, sat right at the top of the ship.”
