MS Spirit of Tasmania II is a super fast ropax ferry owned by TT-Line Pty. Ltd. and operated on the route from Melbourne and Devonport. She was built in 1998 by Kvaerner Masa-Yards Turku in Finland for Superfast Ferries as MS Superfast III. From 2002 onwards she sails for TT-Line Pty. Ltd. as MS Spirit of Tasmania II.

Concept and construction
The Superfast III was the first ship of the second pair (the former pair being Superfast I and Superfast II built in Germany) built for Attica Group's subsidiary Superfast Ferries at Kvaerner Masa-Yards for their Adriatic Sea services from Patras to Ancona. She was a sister ship of MS Superfast IV.

Amenities and deck layout
Spirit of Tasmania II has 11 decks, with 222 cabins.
Decks 1 to 6 are used to hold cars and trucks. The for-end of Decks 1 and 2 are accessed via a ramp from deck 3 (The Aft-end space of the two decks houses the ships machinery). Deck 6 holds cars using a hoistable platform.
Deck 7 has cabins, a reception area, small movie theater, lounge bar, gaming lounge, gift shop, tourism bureau, main bar, two restaurants and a children's playroom.
Deck 8 has cabins and an ocean recliner area.
Deck 9 is mainly crew area.
Deck 10 has a bar and disco area.
Deck 11 has a helicopter landing pad.

General characteristics
Class & type: Superfast III class fast ropax ferry
Tonnage: 29,067 GT
5,650 DWT
Length: 194.3 m (637 ft 6 in)
Beam: 25.00 m (82 ft)
Draught: 6.55 m (21 ft 6 in)
Installed power: 4 × Wärtsilä-NSD 16ZA40S diesels
42,240 kW
Speed: 30.8 knots (57.0 km/h; 35.4 mph) maximum speed
Capacity: 1400 passengers
750 berths
1000 cars
1852 lanemeters
Builder: Kvaerner Masa-Yards Turku
Yard number: 1340
Completed: 1998
Identification: IMO number: 9158434
Call sign: VNSZ
MMSI number: 503433000