Gib'Sea 364 Information, Review, Specs

Sailing Performance & Handling

Under sail, the Gib’Sea 364 is characterized by the balanced, predictable handling synonymous with Joubert-Nivelt designs. With a displacement of approximately 5,800 kg and a ballast ratio nearing 30%, the boat is notably stiffer than earlier Gibert Marine models. This stability allows the 364 to carry its sail area longer into a building breeze before requiring a reef. According to technical assessments by the French maritime publication Voiles et Voiliers, the hull form features a fine entry and a relatively flat aft section, which aids in off-wind tracking and prevents the "wallowing" often associated with high-volume cruisers of this length.

The vessel was typically rigged as a masthead sloop with a large overlapping genoa, which provides the necessary power to move the hull in light air. In a blow, the spade rudder remains responsive, though owners often note that the boat performs best when kept relatively upright. While it is not a pure racing machine, its sailing "feel" is described as more communicative than the later "Dolphin Nose" Gib’Sea models produced under Dufour’s ownership. The 364's sibling, the Gib’Sea 362, shares the same basic hull architecture but features a slightly different deck mold and interior furniture weight; the 364 is generally considered the more refined and performance-oriented of the two.

Interior Comfort & Variations

The interior of the Gib’Sea 364 was a masterclass in space optimization for its time, frequently configured in a three-cabin layout that was ambitious for a 36-foot hull. The use of light-colored woods, often ash or light oak, was a departure from the dark teaks of the 1980s, creating an airy and luminous atmosphere below decks. The saloon features a U-shaped settee to starboard with a linear or slightly L-shaped galley to port, providing ample bracing points for cooking while underway.

Headroom is a standout feature, remaining generous throughout the main cabin and extending into the aft cabins. The three-cabin variant—popularized by the European charter market—includes two symmetrical aft cabins and a V-berth forward. A less common two-cabin "Owner’s" version was also produced, which significantly expands the head and provides a much larger galley and cockpit locker storage. Regardless of the layout, the 364 is noted for its functional nav station, which is large enough to accommodate full-sized paper charts, a feature often lost in modern boats of similar length.

Known Issues & Buyer’s Checklist

Prospective buyers of a Gib’Sea 364 should focus on several technical areas specific to Gibert Marine’s construction methods of the early 90s:

• Grid Matrix Integrity: Like many French production boats of this era, the 364 uses an internal fiberglass grid bonded to the hull. Buyers should inspect the bilge areas and the areas surrounding the keel bolts for any signs of "star crazing" or separation, which could indicate a hard grounding that compromised the structural bond.
• Rudder Bearings: The spade rudder on the 364 is known to develop play over time. Excessive vibration at the helm or a visible "knock" when the boat is out of the water suggests the nylon bushings require replacement.
• Portlight Leaks: The original Goiot or Lewmar portlights used in this model are prone to seal failure. Check the interior wood finishes around the windows for water staining, which is a common indicator of long-term leaks.
• Engine Maintenance: Many units were fitted with Volvo Penta or Yanmar diesels. In the Volvo models, the heat exchangers are a known "service item" that can suffer from internal corrosion if the sacrificial anodes were not religiously replaced.

Community & Resources

Owners of the 364 benefit from a robust, albeit decentralized, community of Gib’Sea enthusiasts. The most prominent technical resource is the Club Gib’Sea, a French-based organization that maintains archives of original brochures and technical drawings. While the brand is no longer in production, the shared history between Gibert Marine and Jeanneau means that many hardware components are interchangeable with Jeanneau Sun Fast or Sun Odyssey models of the same vintage, making sourcing spare parts through the Jeanneau Owners Network a viable path for technical support.

The Verdict

The Gib’Sea 364 is a versatile mid-sized cruiser that offers a rare combination of three-cabin utility and respectable sailing DNA. While it lacks the "bulletproof" heavy-weather reputation of a dedicated blue-water cruiser, it excels as a coastal voyager and a comfortable platform for family cruising.

Pros:

• Exceptional interior volume and headroom for a 36-foot boat.
• Balanced sailing performance thanks to the Joubert-Nivelt hull design.
• Luminous, modern interior aesthetic compared to 1980s contemporaries.

Cons:

• Three-cabin layout can feel cramped when fully occupied with gear.
• Aged portlights and deck hardware often require re-bedding.
• The spade rudder is vulnerable to debris and requires regular bearing maintenance.