Inside world’s first, $3 billion underwater superyacht

Billionaires can now get their hands on a huge, $3bn submersible superyacht that can take them underwater in luxury for up to four weeks.

This is a digital prototype of the world’s first underwater superyacht.

An Austrian company is developing a huge, submersible luxury superyacht that can stay under water for four weeks — but it’ll set you back $3 billion.

The Migaloo M5, developed by Migaloo, will be a 541-foot-long submersible that can hold 20 passengers and 40 crew members and dive to a depth of 250 metres, per Air Mail.

It comes with two six-person mini submarines for more underwater adventures, as well as a helipad and room for jet skis.

The 36-seat dining room has glass walls to watch the sea life drift by and optional extras like a swimming pool, wine cellar or cinema can be added.

The Migaloo M5 will cost $3 billion to build. Picture: Migaloo.

It’s designed to stay underwater for four weeks. Picture: Migaloo.

But the luxury vessel will cost interested buyers about A$3 billion to build, and that’s without the extras.

Migaloo CEO and founder Christian Gumpold said the company’s target market was “visionary billionaires with or without existing superyacht experience who have extraordinary demands for exclusivity, safety, adventure”.

Mr Gumpold has been touting the idea of luxury submersibles as the “future of yachting” for the past decade, but so far hasn’t had any takers.

This time, though, he said Migaloo was “in negotiations with a number of interested parties from all over the world who are motivated to own the world’s first superyacht-submarine hybrid.”

The dining room has glass walls to watch the ocean. Picture: Migaloo.

It's been compared to the submarine used by James Bond supervillain Karl Stromberg in The Spy Who Loved Me.

“As it is a completely new development, such a project will require corresponding monetary resources, take a lot of time for design, construction and building and demand many decisions,” he told The Times.

“However, the owner also receives the corresponding prestige and unimagined new possibilities when calling this product his own. Our target group must be aware of this and have the corresponding innovative mindset.”

It’s being called a world first. Picture: Migaloo.

Migaloo M5’s safety features will likely be under scrutiny after the Titan sub imploded at 3500 metres below sea level with billionaires on board last year.

Migaloo is confident its vessel is safe, promising maximum protection with a double-hull construction and a range of rescue systems including the mini submarines.

The Migaloo M5 is just the latest in the company’s long list of wild offerings.

Migaloo also says it can build the Kokomo Ailand, a 117-metre “floating habitat” (like a man-made island) complete with palm trees, waterfalls and a shark feeding station.