Please select your home edition
Edition
North Sails Loft 57 Podcast

U-Boat Worx unveils the Nautilus underwater superyacht at the Monaco Yacht Show

by U-Boat Worx 1 Oct 2022 11:03 PDT
Nautilus Blue underwater superyacht © U-Boat Worx

At the 2022 Monaco Yacht Show the Dutch builder U-Boat Worx will review designs for the 1,250-ton, 37.5-meter Yacht Submarine, the Nautilus. Once it is built, the vessel will be equally at ease functioning as a yacht or a submersible.

  • Nautilus is a 1,250-ton, 37.5-meter vessel
  • It can function as a yacht or a submersible
  • The diesel-electric Nautilus has a depth rating of 200 meters
  • The cruising speed is 9 knots
  • Onboard facilities include a bar, a pool, lounge and dining room, four luxury guest cabins, a spacious master bedroom, and a galley
  • Ten 4-meter-wide windows offer an exceptional view of the underwater world
  • The Nautilus has a starting price of € 25 million

Since Jules Verne's 20,000 Leagues Under the Sea came out in 1870, people have been dreaming of a luxury yacht with dive capabilities. Since then, inventors produced a lot of impressive concepts. Unfortunately, not one of these designs has ever been realised.

Being the world leader in the market for small submersibles, U-Boat Worx has now finally succeeded in engineering a realistic combination of luxury and safety in a fully certified private submersible.

The diesel-electric Nautilus has a depth rating of 200 meters, with a surface cruise speed of 9 knots and an underwater speed of 4 knots. Once ordered, an owner can expect to have their Nautilus delivered within 30 months.

When functioning as a boat, the Nautilus offers a massive sundeck equipped with a freshwater pool, a bar, and a luxurious dining table. This al fresco arrangement is retracted before the submersible slips below sea level.

A newly invented, completely pressure-resistant electrical tender is stowed under the Nautilus's aft deck and will stay outside while diving. This tender, the Aronnax, may also be used for transporting five scuba divers underwater to the intended dive spot.

The Nautilus interior features a 50 sq. m dinner and lounge area with four circular windows. Each with diameters close to 4 meters. The proposed design for the submarine has a master bedroom and four staterooms, as well as sleeping quarters for up to six crew. A fully equipped galley makes cooking an underwater meal simple and fun. However, interior layouts are fully customisable by the client.

The superyacht submarine will be able to stay under water for up to four days. At cruise speed, the underwater endurance is six hours.

When not in use, the Nautilus can be docked at any quay that can accommodate its 6.5-meter draft. The Nautilus has a starting price of € 25 million. "People that have decided to buy a yacht will now have to consider if their vessel of choice can also dive down to 200 meters," says U-Boat Worx Chairman and Founder Bert Houtman.

As an added bonus, the Nautilus easily combats seasickness. "If the sea becomes too rough," says Houtman, "You simply dive and continue your voyage in comfort. With the Nautilus, the yachting market will never be the same again."

Specifications

  • Occupants: 7 crew up to 10 passengers
  • Maximum Operating Depth: 200 meters
  • Range 3,200 NM
  • Type: Dry, 1 Atmosphere
  • Classification: DNV
  • Submersible Length: 37.5 meter
  • Submersible Width: 7.7 meter
  • Submersible Height: 7 meter
  • Weight: 1,250 tons
  • Pressure Hull Material: Steel
  • Master Suite: 1
  • Staterooms: 4
  • Bathrooms: 4
  • Galley: 20 m2
  • Exterior sun deck: 59 m2

Related Articles

29er World Championship at Porto Day 5
Yet another shift in the competition The penultimate day of the 2025 29er World Championship in Porto brought yet another shift in the competition, as light wind conditions continued to challenge sailors and reshuffle the standings. Posted on 7 Aug
Rolex New York Yacht Club Invitational Cup preview
More than half of the 20 teams have traveled to Newport this summer to practice One of the best ways to track the intensifying competitiveness of the Rolex New York Yacht Club Invitational Cup is the number of teams taking time to train in Newport in advance of this year's edition. Posted on 7 Aug
Fact check! “Asteria's final voyage” - GGR 2022
The untold story of Asteria's sinking and Tapio Lehtinen's rescue! On NOV 18th, 2022, at around 0700hrs Tapio Lehtinen woke to a loud crash from the back of his beloved ASTERIA. He was 450 miles off the coast of South Africa racing in the solo McIntyre Golden Globe Race around the world. Posted on 7 Aug
Classic Yacht Challenge Series Maine Series wrap
127 boats competed under the CRF rating rule Across five Maine regattas this summer, 127 boats competed under the CRF rating rule. Of those, 20 boats qualified for the Classic Yacht Challenge Series (CYCS) Maine District Awards by participating in the required number of races. Posted on 7 Aug
ABYMA Marine & Yachting events 2025-26
Unveiling an exciting calendar for the upcoming year The Antigua and Barbuda Yachting and Marine Association (ABYMA) is delighted to announce an exhilarating calendar of marine and yachting events for the upcoming year in Antigua and Barbuda. Posted on 7 Aug
Amarris crowned IRC Two-Handed European Champion
Combined results from RORC Cowes Dinard St Malo and the Rolex Fastnet Race After a season of adversity and determination, French sailor Achille Nebout has claimed the 2025 IRC Two-Handed European Championship, rounding off an extraordinary campaign racing with two teammates; Gildas Mahé and Tanguy Bouroullec. Posted on 7 Aug
Vaikobi Launches Custom Teamwear Program
To Elevate Team Identity and Performance Vaikobi, the world-renowned brand in performance watersports apparel, is proud to officially launch Vaikobi Custom Teamwear, a bespoke service designed to outfit teams, clubs, and businesses with high-quality, customised technical clothing. Posted on 7 Aug
C-Tech has a quiet presence in big regattas
Behind each result in AC2025 and the Fastnet, lies months of development by C-Tech Behind each result in AC2025 and the Fastnet, lies months of development by C-Tech working quietly with sailmakers and teams to get the right materials in the right place, designed precisely for the rig, the sails, and the campaign. Posted on 7 Aug
America's Cup: Naples first taste of the Cup
The America's Cup came to Naples in 2012 and 2013 for two of the most memorable regattas. The America's Cup World Series, a multi-city series in the lead up to the 2013 America's Cup regatta in San Francisco, came to Naples in 2012 and 2013 for two of the most memorable regattas. Posted on 7 Aug
29er World Championship at Porto Day 4
Only one race per fleet held, but it shakes up the leaderboard Day four at the 29er World Championship Porto 2025 delivered just one race per fleet due to tricky light wind conditions — but that was enough to shake up the leaderboard! Posted on 6 Aug
Palm Beach Motor YachtsAllen Dynamic 40 FooterNorth Sails Loft 57 Podcast