Sunreef 77 Ultima
- Type: Hybrid performance catamaran
- LOA: 23.5 m (77 ft)
- Beam: 8.2 m
- Accommodation: up to 10 guests, full-beam owner's suite
- Classic version: Volvo D11-IPS 950 engines
- Eco version: electric propulsion with integrated solar
- Layout: flybridge with aft beach club
- Construction: fully custom, built in Gdansk
Its place in the range
The 77 stands near the top of the Ultima line, above the 66 and below the flagship 88. It offers superyacht-level accommodation while keeping the sharp, efficient hull that defines the range. Up to ten guests can cruise aboard in bespoke comfort. This is the Ultima for an owner who wants scale and speed together. It answers the owner who loves the Ultima character but has outgrown the space of the 66.
Sunreef offers the 77 with Volvo D11-IPS 950 engines in the classic version and with a solar-assisted hybrid Eco drive. The hybrid brings silent anchoring and emission-free short runs to a large yacht. Both versions share the same performance platform. The choice comes down to how much silence an owner wants to keep against outright pace. That flexibility lets a buyer aim the yacht firmly at fast ocean passages or at quiet, emission-free cruising close to home.
Design and deck life
At 23.5 metres with an 8.2-metre beam, the 77 has the deck space for a full flybridge and expansive social zones. The aft platform folds the deck down to the sea for a broad beach club. The foredeck adds another private lounge away from the crowd. Owners set the layout of shade, dining and sunbeds to their own plan. The beach club turns the whole stern into a waterfront terrace once the anchor is set.
The styling keeps the muscular Ultima look while wearing its extra size with poise. Custom paint and finishes make each 77 individual. The flybridge doubles as a second helm and a commanding entertaining deck. The exterior is engineered for large groups and long, sunny days. With distinct decks fore, aft and up top, a full guest list can gather or scatter as the day turns.
Superyacht accommodation for ten, carried on the lean Ultima performance hull
Interior and accommodation
Inside, the 77 offers the volume for a proper superyacht layout while keeping the interior light and connected to the sea. A full-beam owner's suite anchors the accommodation, with further cabins for guests. Sunreef's craftsmen finish every surface to a bespoke brief in the owner's chosen materials. The saloon opens to the aft deck through large glazing. The full-beam master gives the owner a private suite on the scale of a land bedroom.
Storage, tankage and systems are scaled for extended cruising with a full guest party. The galley and crew areas support professional service. Climate control is tuned to the energy budget on the Eco version. The interior mood is refined, bright and generous. The layout keeps owner, guest and crew movement separate, so the yacht stays private even when full.
Engineering and performance
The 77 rides the lower-drag Ultima hull that keeps the range quick and efficient. The classic version uses Volvo D11-IPS 950 pod drives for strong, controllable performance. The Eco version substitutes electric propulsion and solar for silent, clean running. Pod drives keep a yacht of this size manageable at low speed. The efficient hull lets the 77 hold a fast cruise without the fuel burn a heavier design would demand.
Sunreef builds the composite structure in house for the stiffness a fast hull needs. The performance form lets the 77 cruise quickly without punishing fuel burn on the classic engines. Systems are engineered for real autonomy away from a shipyard. The result is a superyacht that still moves like an Ultima. That in-house build is the foundation for both the pace and the long-range comfort owners expect from a yacht at this level.
The owner it suits
The 77 Ultima suits an owner who wants superyacht accommodation and Ultima pace in one hull. It rewards those who host up to ten guests and want speed without a heavy, stately feel. Buyers moving up from the 66 gain volume and range while keeping the character. It carries a professional crew with ease. It fits the owner who wants a genuine superyacht that still feels quick and involving to run.
It also makes a compelling charter yacht where performance and comfort both matter. The flybridge and beach club give it genuine host appeal. For an owner ready for a larger boat that still drives with purpose, the 77 fits. Life aboard is quick, spacious and refined. Owners who charter between private trips find the blend of speed and space a genuinely strong draw for their guests.
Who it is for: Owners who want superyacht-class accommodation for up to ten guests without giving up Ultima pace.