was put into Viking Line traffic between Turku and Stockholm on June 15, 1979. The Rosella was laid down on April 27, 1979 and was launched on August 14, 1979. Nine months later, on April 25, 1980, the Rosella was delivered to SF Line. Due to a seaman's strike in Finland, the Rosella wasn't put into service until May 23 when she started sailing on the Naantali-Kapellskär route. Service history During her entire career, the Rosella has been a part of the fleet of Viking Line. She has served on the longest time and on more routes than any other Viking Line ship. Naantali–Mariehamn–Kapellskär (1980–1981) When delivered, the Rosella was put in service on Viking Line's route between Naantali and Kapellskär together with her sister Turella and SF-Line's Aurella. Turku–Mariehamn–Stockholm (1981–1988) After one year of service, Rosella was transferred to the Turku–Stockholm route, switching routes with Slite's Diana II. The Rosella continued on this route until the delivery of the Amorella on October 14, 1988. Naantali–Mariehamn–Kapellskär (1988–1993) In 1987 SF Line made an agreement with Stena Line to sell the Rosella to them once the Amorella was delivered in March 1988. However, the Amorellas delivery was delayed by seven months, meaning the Rosella could not be delivered to Stena in time for the summer season 1988, and SF Line had to pay them compensations. In the end Stena and SF Line reached an agreement where the Turella, which was in better condition and easier to convert for the traffic Stena planned her for, was sold instead of Rosella. As a result the Rosella took over the Turellas role on the Naantali–Mariehamn–Kapellskär route, replacing her sister for the second time. Turku–Mariehamn–Stockholm (1994–1997) After the collapse of Rederi AB Slite, the other Viking Line partner, in 1993, SF Line was forced to reorganise its operations. After construction of additional cabins in place of the cardeck on deck 4, Rosella returned to the Turku–Mariehamn–Stockholm route in January 1994. During the summer seasons of 1995 and 1996 replaced Rosella on the Turku route, freeing her to operate car-passenger friendly Naantali route during the high season. Stockholm–Mariehamn cruises (1997–2003) When Viking acquired in 1997, the Rosella was replaced on the Turku–Stockholm service by . In the new situation the Rosella started making 24 (later 20/22) hour cruises from Stockholm to Mariehamn under the marketing name Dancing Queen during the winter season, but still returned to