AmaWaterways AmaMelodiaDecks: 3Passengers: 64 Crystal Crystal SerenityYear Built: 2003Refurbished: 2023Passengers: 740Size: 51,400 tons Crystal Crystal SymphonyYear Built: 1995Refurbished: 2023Decks: 8Passengers: 606Size: 51,044 tons Royal Caribbean International Grandeur of the SeasYear Built: 1996Refurbished: 2012Decks: 11Passengers: 2,446Size: 74,140 tons Silversea Silver ShadowYear Built: 2000Refurbished: 2017Decks: 7Passengers: 388Size: 28,258 tons