Yachts for sale / Sunreef 66 Ultima

2026 Sunreef 66 Ultima

Fort Lauderdale, FL, US 66 ft · 23.7 ft' beam
Asking
$5,550,000
Our Thoughts

The 2026 Sunreef 66 Ultima represents a genuinely distinctive approach to modern catamaran design—one that challenges the conventional boundaries between monohull and multihull architecture. This 66-foot electric catamaran is engineered around a fundamental insight: that a cruising catamaran doesn't need to look or feel like a traditional multihull to deliver the practical advantages one offers.

The hull design reflects this philosophy directly. Rather than embrace the wide, symmetrical form typical of most catamarans, the Sunreef 66 Ultima narrows its beam relative to length, achieving a beam-to-length ratio closer to monohull proportions. This deliberate constraint creates a unified interior volume between the twin hulls—effectively a full-beam living space that rivals single-hull yachts in openness and flow. The result is a commodious owner's cabin and main deck layout that prioritizes livability without the draft penalties of a monohull or the visual bulk of a conventional catamaran.

The electric propulsion system is central to the vessel's operational identity. This configuration delivers inherent advantages: no diesel vibration, no exhaust odor, and substantially reduced noise throughout the yacht. For owners prioritizing environmental stewardship and quiet cruising in sensitive waters, the electric platform fundamentally changes the ownership experience. The 2,000-liter fuel capacity and 800-liter water capacity support extended cruising with proper power management and onboard systems planning.

Design details reinforce the hybrid philosophy. Folding bulwark platforms create a private Ocean Lounge—an extended outdoor living space that transforms the perimeter of the yacht into usable entertaining area. The sleek hull form is engineered for efficiency, minimizing hydrodynamic drag to optimize range and performance relative to the electric drivetrain.

At 66 feet with a 23.7-foot beam, the Sunreef 66 Ultima occupies a specific market position: large enough for serious offshore cruising and extended family use, compact enough to access most quality marinas without the operational complexity of larger displacement hulls. This is the fifth iteration in Sunreef's Ultima series, reflecting a mature design philosophy refined across multiple builds.

The 2026 Sunreef 66 Ultima appeals to discerning owners who value innovation in marine engineering, environmental responsibility, and the practical advantages of catamaran stability and interior volume—without compromise on aesthetic sophistication or the refined cruising experience expected at this level.

Provided listing description Click to read the original broker text

The Sunreef 66 Ultima marks the fifth instalment in the Ultima series, continuing the tradition of defying conventional categorization and establishing its unique identity within the maritime landscape. In essence, the Sunreef 66 Ultima harmoniously merges the best attributes of monohull and multihull living spaces, coupled with a shallow draft that challenges traditional norms in luxury yachting. This vessel introduces a new paradigm in marine architecture, rewriting the rules of opulence on the open seas. Sporting a sleek and sporty hull, this electric catamaran ensures effortless access to any marina, while its advanced design minimizes drag for heightened performance and energy efficiency. The Sunreef 66 Ultima pioneers a distinct category, outclassing competitors with its combination of speed, comfort, and sustainability—no fumes, no vibration, no trace. The groundbreaking nature of this innovation stems from the vessel’s departure from conventional catamaran design. On initial inspection, its form deviates from the standard catamaran shape, opting for reduced width to achieve a beam-to-length ratio more reminiscent of a monohull. This strategic adjustment facilitates the creation of horizontal surfaces between the twin hulls, seamlessly connecting them to form a unified volume akin to a monohull. The outcome is a commodious yacht interior, highlighted by an exceptionally spacious full-beam owner’s cabin. Distinctively setting the Sunreef 66 Ultima apart from monohull vessels are the folding bulwark platforms, creating a private Ocean Lounge that enhances the vessel’s allure. This thoughtful design element further solidifies the Sunreef 66 Ultima’s status as a revolutionary force in luxury yachting. As a true hybrid yacht, it redefines expectations with its unparalleled blend of innovation and sophistication. sophistication.

Sunreef 66 Ultima: The Hybrid Electric Catamaran Redefining Luxury Cruising
The 2026 Sunreef 66 Ultima represents a fundamental shift in how luxury yachting approaches hull design, propulsion, and interior space. Positioned at the intersection of monohull comfort and multihull stability, this 66-foot electric catamaran challenges conventional marine architecture while delivering the practical advantages both vessel types have traditionally offered separately. For buyers seeking a modern cruising platform that prioritizes sustainability, interior volume, and distinctive design, the 66 Ultima introduces a category that stands apart from conventional offerings in the luxury yacht market.
Overview: A New Category in Luxury Yachting
The Sunreef 66 Ultima marks the fifth iteration in Sunreef's Ultima series, a line specifically engineered to transcend traditional categorization. Rather than committing fully to monohull or catamaran conventions, this vessel synthesizes the best operational and spatial qualities of both. The electric propulsion system eliminates the noise, vibration, and emissions associated with conventional diesel powerplants, fundamentally changing the onboard experience during extended cruising. At 66 feet in length with a 23.7-foot beam, the 66 Ultima employs a deliberately narrow catamaran hull form—a departure from the wide, beamy designs typical of production catamarans. This strategic proportioning creates a beam-to-length ratio closer to monohull standards, allowing for a unified interior volume that feels spacious and cohesive rather than separated by the structural requirements of traditional twin-hull vessels. The result is a yacht that delivers catamaran stability and shallow-draft accessibility while maintaining the interior flow and full-beam cabin dimensions buyers expect from single-hull designs.
Hull Design and Propulsion Philosophy
The 66 Ultima's hull form reflects Sunreef's commitment to performance efficiency and drag reduction. The sleek profile minimizes hydrodynamic resistance, a critical advantage for electric propulsion systems where energy conservation directly impacts range and operational economy. The shallow draft characteristic of the design opens access to anchorages, rivers, and shallow-water cruising grounds that deeper monohulls cannot reach, while the catamaran's twin-hull configuration provides inherent stability without requiring ballast or extensive stabilization systems. The electric propulsion system defines the ownership experience aboard this yacht. Unlike conventional diesel engines, electric motors operate silently and without vibration, creating an environment where conversation flows naturally, generator noise becomes irrelevant, and the sensory experience of being at sea shifts toward the natural elements—water, wind, and light—rather than mechanical sound. This fundamental change in the acoustic environment transforms both cruising comfort and the ability to enjoy anchorages without disturbing nearby vessels or marine habitats.
Interior Architecture: Monohull Space in a Multihull Platform
The interior design of the 66 Ultima directly addresses a longstanding compromise in catamaran ownership: the challenge of achieving full-beam cabin dimensions while maintaining the structural benefits of twin hulls. By narrowing the overall beam relative to length, Sunreef engineers created horizontal surfaces connecting the twin hulls, effectively forming a unified interior volume. This architectural solution allows for an exceptionally spacious full-beam owner's cabin—a feature that typically demands either a monohull configuration or significant interior compromise on traditional catamarans. The cabin layout benefits from the unified interior volume concept. Rather than the divided, corridor-like cabin spaces common in conventional catamarans, the 66 Ultima offers flowing living areas with generous proportions. The full-beam owner's cabin becomes a true sanctuary, with the width and openness that define luxury cabin design. Natural light penetration and sightlines throughout the interior benefit from this unified approach, creating an environment that feels expansive despite the vessel's practical cruising size.
Deck Design and Outdoor Living Spaces
The 66 Ultima introduces folding bulwark platforms that extend the outdoor living experience beyond traditional deck boundaries. These platforms create a private Ocean Lounge—a protected outdoor space that functions as an extension of the interior living areas. When deployed, these platforms provide additional seating, lounging, and entertaining space while maintaining the vessel's sleek profile when retracted. This design element addresses a key luxury cruising priority: the seamless transition between interior and exterior spaces, allowing owners and guests to experience the marine environment while remaining protected and comfortable. The deck layout supports both active use and relaxation. The catamaran's inherent stability—a direct advantage of the twin-hull configuration—means that outdoor entertaining and movement on deck occur without the constant motion compensation required on monohulls. This stability advantage becomes particularly valuable during extended anchoring, where guests can move freely on deck and enjoy outdoor spaces without the fatigue that accompanies monohull motion.
Fuel and Water Capacity for Extended Cruising
The 66 Ultima carries 2,000 liters of fuel and 800 liters of fresh water, specifications that reflect the yacht's design as a serious cruising platform. For an electric catamaran, fuel capacity relates to generator support and auxiliary systems rather than primary propulsion. The 800-liter water capacity supports extended passages and comfortable freshwater provisioning for a full cruising party, with adequate reserves for both consumption and onboard systems.
Why the 66 Ultima Represents a Meaningful Departure
The 2026 Sunreef 66 Ultima succeeds because it does not attempt to be everything; instead, it focuses on solving specific problems that have limited catamaran adoption among luxury cruisers. The narrow-beam design eliminates the awkward proportions that make traditional catamarans feel wide and ungainly. The unified interior volume eliminates the spatial compromise inherent in conventional twin-hull layouts. The electric propulsion removes the sensory and environmental costs of diesel cruising. The folding platforms extend outdoor living without adding permanent beam or draft penalties. For buyers evaluating luxury cruising yachts in the 60-foot range, the 66 Ultima occupies a genuinely distinct position. It offers the stability and shallow-draft advantages of a catamaran, the interior spaciousness and full-beam cabin of a monohull, and the operational silence and environmental responsibility of electric propulsion. The vessel appeals to owners who prioritize the cruising experience itself—the quality of life aboard, the ability to access diverse anchorages, the pleasure of silent passage through protected waters—over raw speed or conventional status markers. The 66 Ultima's position in Fort Lauderdale places it within reach of the Bahamas , the Florida Keys, and the extended Caribbean cruising grounds. For owners planning extended seasons in warm-water destinations, the combination of shallow draft, stability, spacious interior, and silent operation creates a compelling platform for both private cruising and entertaining guests in some of the world's most desirable marine environments.
Length
66 ft
Beam
23.7 ft'
Year
2026
Builder
Sunreef
Model
66 Ultima

Fly Yachts is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Sunreef Yachts. It is offered as a convenience by this broker/dealer to its clients and is not intended to convey direct representation of a particular vessel.

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