2026 Sunreef 66 Ultima

The Sunreef 66 Ultima is a 66-foot catamaran that blends monohull and multihull characteristics in an unconventional design. Rather than the wide beam typical of catamarans, this yacht narrows its proportions to achieve a beam-to-length ratio closer to a monohull, creating a unified interior volume between the twin hulls. The result is a spacious accommodations layout centered around a full-beam owner's cabin. The composite hull features a shallow draft and streamlined profile designed to reduce drag and improve efficiency.

The yacht incorporates folding bulwark platforms that open to create an extended Ocean Lounge, expanding the outdoor living space. A single Volvo D8 IPS 800 engine powers the boat. The interior includes 11 heads throughout the accommodation spaces, reflecting the yacht's substantial size and layout.

This design departs from conventional catamaran architecture by prioritizing interior volume and monohull-like proportions while retaining the stability and shallow-draft advantages of a twin-hull form. The 66 Ultima continues Sunreef's Ultima series approach to luxury yacht design, combining comfort, performance, and a distinct approach to contemporary yacht living.