Costa Cruise Lines Costa SmeraldaYear Built: 2019Passengers: 6,600Size: 180,000 tons Regent Seven Seas Cruises Seven Seas ExplorerYear Built: 2016Decks: 10Passengers: 750Size: 56,000 tons Regent Seven Seas Cruises Seven Seas MarinerYear Built: 2001Refurbished: 2018Decks: 8Passengers: 700Size: 48,075 tons