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Picture yourself venturing forth to the untouched corners of the world with this exquisite 3D flyover of the Circa 40m Explorer by LOMOcean design. 

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From the world-renowned New Zealand builder, The Circa Marine 24m offers you all you need to explore the world’s oceans in safety, economy & comfort. With a robust aluminium construction and without the complexity seen in other designs, the Circa 24 provides easy to understand systems with ample redundancy, ensuring ease of use, wether short-handed or with minimal crew.

No other builder of this style of adventure/explorer vessel in the 20 to 30m range has the experience of Circa Marine, with 20 offshore passage-making explorer yachts launched to date.


These vessels are designed and built with protection of the environment they operate in being a dominate design must have. Not only are these vessels built from recyclable aluminium, and natural timbers but also the hull design and pairing with the most efficient conventional engine and driveline system to achieve class beating economy figures.


The Circa 24 is also able to be configured (the ability to match this hull) with Electric drive hybrid options that can further improve this already low carbon footprint.



The Circa’s 24m delivers safe economic low maintenance passage-making, using real world data, our Circa 24m burns less than 20 L/hr (US 5.28 Gal/hr) at 10 knots or 30 L/hr (US 7.92 Gal/hr) at 11.5knots, with the same driveline able to propel the vessel along at a speedy 13.5-14 knots.


We offer the Circa 24m with unparalleled customisation opportunity to personalise your vessel.

To start your adventure contact us today to discuss options, 2023 Prices start from NZ $7.5 million.


You’ve seen the rest, now experience the best. 


“Your journey awaits.” Contact, Peter Barnard for more information:


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Introducing Circa Marine’s latest concept.Circa 40m Explorer: Unleash your oceanic adventures in unparalleled comfort and style.

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Thierry Verstraete got in touch with Circa Marine from his 18m yacht in Tahiti, the outbreak of Covid had essentially ended his world tour.

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Presenting the Circa 24m Long Range Expedition Motor Yacht. This vessel is the perfect combination of luxury and practicality, designed to take you on unforgettable journeys to remote locations, without sacrificing comfort or safety.


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It took an incredible effort from the entire Circa Marine team to meet this challenging timeline. Just seven months from haul out as a 19-metre vessel to launching as a 23-metre vessel with an additional bridge deck!

This refit included full 3D scanning of the vessel. Structural design by LOMOcean Naval Architects. The transom was removed and extended by a massive 4 metres. The interior is a complete strip out and rebuild. New engine and drive line were installed and most of the vessel was replumbed. The electrical system was completely redesigned, replaced and rewired. Full commissioning and testing completed dockside at Port Nikau’s new superyacht capable marina and followed by owners’ sea trials.

The team at Circa Marine where proud to see the Shadowland Expeditions team sail Seafinn away before Christmas as promised.

If you have a pleasure or commercial vessel requiring a refit, please talk to the team at Circa Marine today.


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The Circa SXV 40m concept has evolved!


It is an extensive process to get from the first concept to a design ready for production.  We have spent considerable time consulting naval architects and designers and considering feedback from valued clients.  It isn’t a single orbit either, you will see this concept plan has come a long way from the initial release.


The consensus was to provide a larger proportion of house for more indoor living space.  Whilst still providing ample room aft for a range of configurations that may be desired, this space could provide an infinity lap pool, tender/s storage, Heli pad, beach club or whatever may be required.


Custom designed motor yachts begin with a vision, our vision is to provide the adventurer and explorer, the vessel to carry them to remote destinations to lap up the sun of secluded tropical locations or dance with the penguins in the moonlight.


The platform for this stunning motor yacht can be easily developed to whatever you may need, from research vessel to superyacht.  We have the flexibility to develop a high degree of customisation and have a great support team to help with the decision-making process.  Our in-house designers will then make your vision a reality. 


Once the small detail of a contract is finalised, the build gets underway. Currently at Circa we have the opportunity for someone to secure a build slot for June this year allowing for an almost immediate start. 


All that’s required is an email or phone call to start the conversation.  Contact Peter at


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We now have a build slot open for June this year!

If you want 20 metres or up to 40 metres of cruising and exploring. Get in touch now, secure that spot and become one of our lifetime customers.



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Construction of the new Regional Council Workboat started a few short months ago.

Frames are all standing and we are well into the shell plating. Exciting to see the project starting to take some real shape.


When the shell plating is complete, there are more than 1000 hours to weld out the hulls.



It takes talent to form curves in Aluminum.


Construction of the hull is completed upside down to allow easier access for welding.

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 After the successful development of Circa 24m, and after discussions with several parties...

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Expectations vs Reality


When the owners of Sea Finn signed up for an intensive refit with Circa Marine, they also commissioned LOMOcean naval architects for design.

With LOMOcean’s detailed renders alongside the finished product, we can see the level of detail achieved in both design and execution. Circa boast in-house Fabrication, Engineering, Electrical, Interior, Painting and Upholstery. The Sea Finn refit is a credit to both companies and their incredibly skilled staff.

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Circa 24m #02 - "Deo Juvante" Lets get to know her, part 4 - Systems.


The Circa 24m driveline consists of ZF propellors and gearboxes, these were specified to best match the MAN engines to produce the best performance and economy for this vessel. ZF and LOMOcean Design collaborated closely to ensure this brief is met, something which has been very successful on both Mollymawk and Deo Juvante.


Visible in this shot are the deep skegs offering a high degree of protection for both the propellors and rudders.

Pictured above are some of the driveline components their raw form before being machined, assembled and fitted. The driveline components, Engine, Gearbox, Shafts, couplings, alternators, exhausts etc… all arrive as seperate components with a high degree of design, machine and fabrication to bring them all together in a functional and reliable driveline system. Our experienced team have the knowledge and skill required to produce this to a very high standard, keeping access and serviceability at the forefront of the process.

Seen here in the completed engine room the MAN Engines sit unencumbered.


With sculptured exhaust system, guard rails, raw water filters all easily serviced and accessible. The lift out floor grates provide full visibility into the bilge to highlight any future emerging maintenance requirement. The rudders have been engineered with performance in all conditions from dockside manoeuvring to surfing at speed safely and perform with ease.

The steering system is developed in house bringing together components and systems, we know work well in our application. We provide both a high level of redundancy and safety, but more importantly, we have kept the operation and integration of these simple. We discovered long ago that redundancies only have value when they can be instinctively executed without fuss or complexity.

The Lazarette houses the steering components as well as providing a comfortable workshop space, with storage space for spares, tools and essential items.


The electrical systems are critically important to the safety and durability required for extended cruising.

The electrical design which includes physical mockups are all part of the process. Victron systems provide all the onboard power and interface for power control. Consideration is given for ventilation & future maintenance.


The vessel control centre is located midships with easy access to monitor and control all essential power systems Maretron features extensively aboard “Deo Juvante” with a comprehensive package allowing both vessel systems monitoring and control from this control centre, helm or even onboard iPad.


All systems are designed with redundancies in mind to provide confidence at sea. There is a full compliment of systems required for life at sea, please enquire for more detail.

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