Crystal Crystal SerenityYear Built: 2003Refurbished: 2023Passengers: 740Size: 51,400 tons Regent Seven Seas Cruises Seven Seas ExplorerYear Built: 2016Decks: 10Passengers: 750Size: 56,000 tons Regent Seven Seas Cruises Seven Seas SplendorYear Built: 2020Decks: 10Passengers: 750Size: 55,254 tons Silversea Silver MuseYear Built: 2017Decks: 8Passengers: 596Size: 40,700 tons Viking Ocean Viking OrionYear Built: 2018Decks: 14Passengers: 930Size: 47,800 tons Viking Ocean Viking VenusYear Built: 2021Decks: 14Passengers: 930Size: 47,800 tons