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Aluminium Marine delivers advanced whale watcher

Written by Nick Blenkey
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Spirit of Migaloo II

Brisbane, Australia, shipbuilder Aluminium Marine has delivered the Spirit of Migaloo II, a 24 m catamaran whale watch vessel to Seaworld Cruises.

Designed by Incat Crowther, Spirit of Migaloo II is specifically configured for optimum viewing during whale watch trips.

The main deck features a lifting platform on the stern for water level viewing of aquatic wildlife. The platform has wide access stairs connecting it to the aft main deck. The main deck cabin seats 100 passengers in booth configuration. Three toilets are located on the aft main deck, with one being handicapped accessible.

A large access leads to the foredeck with its multi-tiered grandstand.

To port is a set of stairs from the foredeck to the mid deck, allowing a flow of passengers around the vessel. The mid deck cabin is open to the wheelhouse, with a wine bar and 34 lounge seats.

A further 24 seats are fitted on the sheltered aft deck, while stairs lead to the roof deck with seats for 40 passengers. An additional toilet is also located on the mid deck.

Spirit of Migaloo II is powered by twin Yanmar 6HYM-WET main engines, delivering 478 kW each. Drive is through fixed-pitch propellers.
Her service speed of 25 knots is achieved at modest engine load.

Incat Crowther has a long-standing relationship with Aluminium Marine, with Spirit of Migaloo II being the nineteenth product of the partnership. Further projects are already under development.


  • Length Overall 81’ 5” / 24.8 m
  • Length Waterline 80’ 5” / 24.5 m
  • Beam Overall 26’ 3” / 8.0 m
  • Draft (hull) 4’ / 1.2 m
  • Draft (prop) 5’ 11” / 1.8 m
  • Depth 8’ 3” / 2.5 m
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