1996 (Klabautermann KLA-14)
- Type: Ferry
- Displacement: 11,671 tons
- Dimensions: 450 x 77.5 x 18.5 ft.
- Machinery: 21.5 knots
- Passengers: 1900
- Vehicles: 480
- Builder: Joseph L. Meyer, Papenburg, Germany, 1979
- Notes: Built as Diana II for the Viking Line (Rederi AB Slite, owners).
Sailed primarily between Sweden and Finland, 1979-1992. Sold to EstLine in 1994 and renamed Mare Balticum, providing service between Stockholm and Tallinn.
Renamed Meloodia in 1996 to serve between Tallinn and Helsinki.