Celestyal Crystal, previously Louis Cristal, is a cruise ship operated by the Cyprus-based Celestyal Cruises and previously Louis Cruise Lines, both in the Louis Group. The ship was originally built as the cruiseferry MS Viking Saga in 1980 at Wärtsilä Perno Shipyard and Turku Shipyard, Turku, Finland for Rederi Ab Sally. In 1986 she was renamed MS Sally Albatross, and rebuilt into a cruise ship the following year. The ship was destroyed by a fire in 1990, and completely rebuilt at Finnyards, Rauma, Finland. She was re-delivered in 1992, still named Sally Albatross. After partially sinking 1994 she was rebuilt at Industrie Navali Meccaniche Affini, La Spezia, Italy, re-entering service as MS Leeward for Norwegian Cruise Line. Subsequently she sailed as MS SuperStar Taurus for Star Cruises, MS Silja Opera for Silja Line and spent a year laid up as MS Opera prior to entering service with her current owner in 2007. Although the 1980 ship and the 1992 ship appear superficially unalike both externally and internally, they share the same IMO number because they are technically the same ship. History Viking Saga The ship was originally built in 1980 for Rederi Ab Sally, one of Viking Line partners as the cruiseferry MS Viking Saga. The bow and stern modules were built at Wärtsilä Turku Shipyard and the middle part was made at Wärtsilä Perno Shipyard. The modules were assembled together and the ship was launched in Perno and the hull was tugged after to Turku Shipyard for outfitting. In 1979-1981 the Baltic ferry operators Silja Line and Viking Line brought several new cruiseferries to the routes connecting Stockholm to Helsinki and Turku. Viking Line received a total of four new ships in 1980 alone, three of which were built for Rederi AB Sally. The Viking Saga and her sister ship MS Viking Song were built by Wärtsilä (now Aker Finnyards) in Turku, Finland. MS Viking Sally (later MS Estonia) was built at the Meyer Werft shipyard in Papenburg, Germany. Two of the Sally ships have been involved in a total of three serious accidents. The Viking Saga was the first genuine cruiseferry in Finland — Sweden traffic. The interior and exterior design of her and her sister was heavily influenced by those of GTS Finnjet of 1977. The Viking Saga and Viking Song, alongside Silja Line's contemporary MS Finlandia and MS Silvia Regina, were instrumental in turning the Helsinki