You want to cross real distance, arrive rested, and step off onto a beach the same afternoon — without a mast, without a watch schedule, and without the crew list of a 100-foot motor yacht. That is the owner Lagoon built the Eighty 3 for. She is the new flagship of the yard's power-catamaran range and the power-catamaran counterpart to the sailing Eighty 2, and she is genuinely new: hulls are only now reaching owners, so the imagery available today is largely Lagoon's own renders and general-arrangement drawings rather than dockside photography.
Lagoon's own framing for her is "tailor your dream," and that is not marketing filler — personalisation is the organising idea of the whole boat.
Who the Eighty 3 Is For
She suits the owner who has already done the 50- to 60-foot power cat and wants more deck, more legs and more layout freedom without the crew structure of a conventional superyacht. Lagoon rates her for 8 to 16 berths across four to six cabins, plus crew accommodation.
She also suits families who genuinely live aboard for weeks rather than weekends. The flush main deck and the 4'2" draft tell you the most about how she is meant to be used: everything on one level, and access to water shallow enough that most 80-foot yachts cannot follow you in.
Accommodation and Layout Choices
Lagoon publishes three interior configurations: four cabins with the galley down, five cabins with the galley down, and five cabins with the galley up. As on the Eighty 2, this is the decision that sets the character of the boat. Galley down keeps the main deck entirely social and service traffic out of sight, which is what you want if a chef is aboard. Galley up sacrifices a cabin and puts cooking in the middle of the living space, which is what many owner-operators actually prefer.
The owner's cabin is a full suite: king-sized berth with a sea view, a private terrace, and dedicated relaxation space. Lagoon has drawn the living areas around natural light and 360-degree views, which is the practical advantage of a wide, low, flush-decked platform over a stacked motor yacht.
Three Hundred Square Meters of Outdoor Living
This is the headline number and it is Lagoon's own: 300 m² of dedicated exterior living space. Roughly 3,200 sq ft of deck you can actually use, which is more usable outdoor area than most yachts twenty feet longer.
The aft swim platform extends to as much as 22 m² and is designed around real equipment — a jet ski or a tender live in dedicated space aft, and the platform doubles as the swimming and diving deck once they are launched. The flush main deck means you move from that platform forward without steps or thresholds, which matters more than it sounds: it is what makes the boat feel like a villa rather than a vessel, and it is what makes her workable for guests who are not agile.
Cruising Character
She is a displacement power catamaran and should be judged as one. Twin John Deere N13-580 diesels produce 580 HP each. Lagoon's published performance is a 12-knot cruise and an 18-knot maximum. If you want a 30-knot planing hull, this is the wrong boat and Lagoon has made no attempt to pretend otherwise.
Lagoon publishes 3,500 nautical miles of fuel autonomy for the Eighty 3. The yard does not state the speed that figure assumes, so treat it as the manufacturer's planning ceiling rather than a schedule you can build a crossing around — verify it against real consumption data on the hull you are buying. Fuel capacity is 2,246 gal (8,500 L), a genuinely large reserve for an 80-foot catamaran.
The other half of the cruising story is the platform itself. Beam is 36'1" and light displacement is 151,017 lbs, which is what gives you a hull that sits flat at anchor and does not roll guests out of their bunks in a cross swell. Combine that with the 4'2" draft and the itinerary opens up: shallow cuts, close-in anchorages and thin water that deeper 80-footers simply have to admire from outside.
Interior, Design and Build
Naval architecture is by VPLP Design, exterior design is credited to VPLP Design and Patrick Le Quément, and the interior is by Nauta Design. She is built at Lagoon's Bordeaux shipyard.
The published interior specification is unusually specific for a production yacht: a marble table, armchairs with braided leather seatbacks, decorative glass panels, natural stone countertops, and wooden furniture in a brushed finish. Lagoon's stated intention is that furnishings, upholstery and accessories are chosen individually — this is closer to a semi-custom brief than a catalogue order.
Fresh water is 1,600 L (422 gal), grey water is 2 x 300 L. CE certification is A: 14 / B: 18 / C: 24 / D: 40.
Living With Her: The Honest Trade-Offs
She is not fast. 18 knots maximum, 12 knots cruise. Your crossings are measured in days, and your weather planning has to be done like a passage-maker's, not a weekender's.
Beam. 36'1" (11.00 m). Marina access is the recurring practical constraint of any catamaran this size — you are booking end-ties and multihull berths well in advance, and some older harbours will not take her at all.
Fuel logistics. Carrying 2,246 gal is an advantage at sea and an exercise in patience at the dock. Small-island fuel facilities will take a long time to fill her, and some cannot.
Loading discipline matters. At 151,017 lbs light, everything you add — tenders, toys, water, stores, a full fuel load — comes off the performance and trim. Be honest about what you actually carry.
Personalisation takes time. The bespoke interior brief that makes her appealing also means more decisions and longer lead times than an off-the-shelf boat. Start the specification conversation early.
She is brand new. No fleet history, no aged hulls to survey, no owner group with years of accumulated knowledge. Early ownership on a flagship has real advantages, but that is not one of them.
Specifications
| Specification | Lagoon Eighty 3 |
|---|---|
| Overall Length | 80'1" (24.40 m) |
| Beam | 36'1" (11.00 m) |
| Draft | 4'2" (1.27 m) |
| Displacement (Unladen) | 151,017 lbs (68,500 kg) |
| Engines | Twin John Deere N13-580 (2 x 580 HP) |
| Max Speed | 18 knots |
| Cruise Speed | 12 knots |
| Fuel Capacity | 2,246 gal (8,500 L) |
| Water Capacity | 422 gal (1,600 L) |
| Cabins / Heads | 4-6 Cabins / 4-6 Heads + Crew |
| Exterior Living Space | 300 m² (approx. 3,200 sq ft) |
| Naval Architect | VPLP Design |
| Interior Design | Nauta Design |
| CE Certification | A: 14 / B: 18 / C: 24 / D: 40 |
Specifications courtesy of Lagoon.
Where That Leaves You
The Eighty 3 is the power half of Lagoon's new flagship pair, and she is the more practical of the two for most of the ways people actually use big catamarans: shallower, flatter, simpler to run, and organised entirely around outdoor living. The 300 m² of exterior deck and the 22 m² platform are the reason to choose her; the 4'2" draft is the reason you will end up in anchorages your friends cannot reach.
If you are choosing between her and the sailing Eighty 2, the question is not which boat is better built — they share the same architects, the same yard and the same interior designer. The question is whether you want the mast.