TUI Cruises Orders Two LNG-Fuelled Cruise Ships from Fincantieriby Ship & Bunker News TeamThe two 160,000 GT cruise ships will be delivered in 2031 and 2032. Image Credit: FincantieriTUI Cruises has ordered two LNG-fuelled cruise ships from the Italian shipbuilder Fincantieri. TUI Cruises is a joint venture between TUI AG and Royal Caribbean Cruises. Upon delivery, the two vessels will join the sister ships 'Mein Schiff Relax' and 'Mein Schiff Flow'- part of the lnTUltion class. The global LNG-fuelled fleet is currently made up of 781 vessels, of which 29 are cruise ships, according to classification society DNV data.