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Sea Spirit III

Sea Spirit III review

Catamaran · 45 ft (14 m) · La Balise Marina

GGetBoat EditorialReviewed August 6, 2026
4.2/ 5
expert score
Design4.3
Performance4.0
Comfort4.4
Handling4.1
Value4.1

Key specs

Builder
Nautitech
Model
Nautitech 46 Fly
Length
45 ft (14 m)
Guests
8
Cabins
3
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Verdict

The Nautitech 46 Fly is a well-proportioned cruising catamaran with strong space-to-length efficiency, solid standard tankage, and flexible layouts for private or charter use. It is not the fastest catamaran in its class, but it offers balanced sailing manners, practical systems, and good livability for up to eight gue

Pros

  • +Spacious 45' catamaran with a flybridge and practical cruising layout
  • +Standard 600L fuel and 600L water capacity support longer stays aboard
  • +Flexible 3–4 cabin, 3–4 head configuration suits private use or charter
  • +Moderate draft and twin-saildrive setup are well suited to coastal cruising
  • +Good equipment base includes autopilot, plotter, radar, generator, and air conditioning

Cons

  • Not a performance-oriented catamaran compared with lighter, sportier rivals
  • Engine power listings vary between sources, which creates some spec uncertainty
  • Standard accommodations can feel less private than larger four-cabin charter layouts
  • Flybridge and cruising focus may add windage and reduce low-speed finesse

The Nautitech 46 Fly uses a proven cruising-catamaran formula: a 13.79 m hull, wide 7.54 m beam, moderate 1.45 m draft, and a flybridge layout that prioritizes usable space over pure speed. Public specs consistently place it in the 45' class, with standard cabin and berth layouts aimed at 6–8 guests and a configuration that can be adapted between owner and charter use.

On the water, it is best understood as a balanced cruiser rather than a race-leaning multihull. The twin diesel saildrive installation and sail plan are typical of this segment, and the boat should deliver predictable handling, straightforward docking, and decent offshore capability for coastal and island cruising. It is unlikely to match the acceleration or light-air performance of more performance-focused cats, but the tradeoff is easier cruising and a more forgiving platform.

Comfort is a clear strength. The available 600 L fuel and 600 L water capacity, plus options such as air conditioning, generator, wifi, fridge/freezer, and entertainment systems, make it suitable for extended stays afloat. The 3-cabin arrangement on this boat should feel more relaxed for a private group than a denser charter layout, although the model’s standard range also includes 3–4 cabin and 3–4 head versions.

In value terms, the 46 Fly sits in a strong middle ground: it offers credible cruising capability, solid equipment, and good liveaboard practicality without the premium cost or complexity of larger luxury cats. The main caveat is that published engine specifications vary by listing, so buyers should verify the installed machinery and onboard options before judging final value.

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