OVERVIEW

MAHANA:

Polynesian (Māori • Hawaiian • Tahitian): "warmth, sunlight, radiant daylight, rest, vacation"

Inspired by her name, MAHANA's radiant, warm, and light-filled interior, was thoughtfully curated by national award-winning ISD Interior Designer Cary Vogel, who created an inviting atmosphere throughout. Vogel skillfully coordinated the yacht’s rift-cut American Cherry joinery with a satin finish, Madrone burl accents, and oversized frameless windows that flood the interior with natural light and expansive views. Custom Hunter Douglas 2-inch blinds framed by tailored lambrequins complement the design, while carefully selected new carpet, fabrics, finishes, and artwork reflect the owner’s South Pacific tribal theme with a refined decorative touch, beautifully orchestrated throughout the yacht.

MAHANA (2001) was engineered and built in the Dutch tradition of hand handcrafted quality, by the West Bay Design Group, in Delta B.C. Her sleek hand sculpted hydrodynamic hull delivers the ultimate in stability, comfort, performance and most importantly, confidence on the water. Powered by twin DDC MTU V12 2000 diesel engines, 1350 hp each, (fully serviced in 2026) MAHANA effortlessly reaches cruising speeds of 20-21 knots and a maximum hull speed of 29 knots.

SonShips are built to the highest standards using advanced composite construction methods, incorporating Core-Cell structural foam in the hull and superstructure and vacuum-bag technology. The decks are balsa-cored for additional strength and weight efficiency. This engineered structure results in a strong, lightweight yacht with excellent sound and vibration reduction, contributing to the quiet, solid ride for which West Bay SonShips are well known.

Designed for comfort and convenience, this superior yacht features 3 beautifully appointed staterooms and 3 ensuite or private heads, plus crew's quarters for 2, MAHANA is perfect for extended voyages with family and friends, whether for owner operator or with a crew of 2.

•Large 20ft beam offering 119GT volume

•Powered by twin DDC MTU V12 2000 diesel engines, 1350 hp each, (fully serviced in 2026)

•Cruising speeds of 20-21 knots and a maximum hull speed of 29 knots

•3 stateroom layout for six guests, highlighted by a full-beam midship master suite

•Bow and stern thrusters with wing stations, making the yacht very owner-operator friendly

AFT DECK

AFT DECK

The beautiful Teak aft deck provides a comfortable outdoor entertaining area with generous seating and dining space. A large built-in dining table allows guests to enjoy meals outdoors while at the dock or at anchor. The space connects seamlessly to the salon through stainless steel and glass entry doors.

Built-in cabinetry includes:

• Sub-Zero Refrigerator, Wine Cooler, and Ice maker

• Sink facilities, making the aft deck ideal for entertaining.

• Wide side decks allow easy movement forward, along both sides of the yacht.

• A ladder to the flybridge is also located on the Aft deck.

• Teak swim step with underwater Lights

MAIN SALON

MAIN SALON

Entering from the teak aft deck through custom double stainless steel and glass watertight doors, you step into MAHANA’s spacious 20-foot full-beam Main Salon, where warm American Cherry joinery with Madrone Burl accents creates an inviting coastal elegance. Generous headroom and oversized frameless windows enhance the sense of openness while filling the salon with natural light and sweeping water views.

A substantial custom wrap-around sectional sofa, extends the full length of the starboard side of the salon, providing generous seating for relaxing or entertaining and was professionally recovered in designer fabrics in (2019.) Two comfortable swivelling barrel chairs complement the seating area. A custom-engineered upholstered ottoman/coffee trunk, designed and built specifically for MAHANA, anchors the seating arrangement while providing convenient built-in storage.

Oversized frameless salon windows bring in abundant natural light and offer sweeping water views. Hunter Douglas 2" blinds, framed by fabric lambrequins, provide privacy while maintaining the yacht’s elegant interior styling. Soft soffit and overhead rope lighting, together with new carpeting installed in (2019,) enhance the warm and inviting atmosphere throughout the salon.

Central to Mahana’s South Pacific theme, and prominently displayed in her Main Salon, is an original bronze sculpture titled “Harmony, by renowned artist Sandra Koop, depicting sea turtles in graceful, choreographed motion. The sculpture stands 31.5 inches tall, and with its marble base weighs approximate 101 pounds. Accented with blue-green patina, that complements the salon’s interior palette, the piece is accompanied by a certificate of Authenticity from Foundry Master Charles L. Wambold and carries a stated value of $20,000.

The salon’s entertainment system centers around a Samsung 50" curved flat-screen television on a retractable lift, paired with a Denon wireless home entertainment system that is multi-zoned to serve both the Main Salon and Upper Deck.

Additional components include:

• Denon tuner, CD and DVD player

• KVH two-way HD antenna

• Shipboard antenna, Starlin and cable TV

• A built-in 12-bottle wine cooler adds convenience for entertaining

OWNER'S STATEROOM

OWNER’S STATEROOM

The full-beam amidships Owner’s Stateroom is a spacious 20-foot ensuite retreat, offering approximately 6'8" headroom and exceptional comfort. At the center is a custom king-sized bed set on an American Cherry pedestal, framed by a mirrored American Cherry headboard and flanked by nightstands with designer lamps.

Storage throughout the suite includes:

• Two cedar-lined hanging closets • Drawer storage built into the bed frame • American Cherry bureau with built-in TV cabinet • Large designer storage trunk at the foot of the bed

Soft soffit and rope lighting enhance the warm atmosphere, complemented by new carpeting installed in 2019.

Adjacent to the stateroom is a private study/parlor featuring:

• L-shaped settee upholstered in designer fabric • Built-in bookshelves • Full-length accent wall mirror

The Owner’s Ensuite includes:

• Karadon countertops

• American Cherry cabinetry

• Spacious stall shower with handheld fixture

• Headhunter head system

• Opening port with screen and cover for ventilation

Both the Owner and VIP staterooms include:

• Samsung televisions with Apple and DirecTV

• Denon stereo systems with surround sound

All mattresses aboard are custom.

VIP STATEROOM

VIP STATEROOM

The VIP Guest Stateroom reflects the same craftsmanship and material quality found throughout the yacht.

A centerline island queen berth provides easy access from both sides.

Features include:

• Cedar-lined hanging locker

• Built-in American Cherry bureau

• Two overhead deck hatches with screens and blackout covers

• Individual reading lights and recessed lighting

The private ensuite head includes a sink and large stall shower with glass doors.

Beautiful designer bedding and décor curated by Cary Vogel complete this welcoming guest retreat.

MID-GUEST CABIN

The Mid Guest Stateroom offers flexible accommodations, with over-under berths, featuring a twin berth above and a double berth below, making it ideal for family or additional guests.

Opening ports with screens provide natural light and ventilation.

The room is finished with coordinated designer bedding and décor.

-Adjoining head

-Ample built-in storage

-Soffit and rope lighting

-Reading lights

LAUNDRY

LAUNDRY ROOM

A laundry center is conveniently located in the hallway just aft of the guest head and includes a Maytag stacked washer and dryer, new in 2019.

GALLEY

GALLEY

Walking forward from the main salon, a few steps lead up to the pilothouse/command center, where you enter MAHANA’s gourmet galley—a signature feature of the SonShip 78’ series. Designed with the full functionality and welcoming feel of a “great room,” this spacious galley flows seamlessly into the pilothouse/command center, allowing the chef, helmsman, and guests to remain connected while entertaining, whale watching, or simply enjoying the scenery underway.

Mahana’s Gourmet Galley flows seamlessly into the yacht’s climate-controlled pilothouse and command center, creating a warm and highly social gathering. A spacious wrap-around settee upholstered in bold designer fabrics surrounds a beautiful Madrone Burl dining table with a stowable leaf, while abundant storage is thoughtfully integrated beneath the settee.

Hunter Douglas 2" blinds framed by fabric lambrequins, soffit lighting with dimmers, and rope accent lighting add warmth and visual depth, complemented by durable new Genuwood flooring that runs throughout both the galley and pilothouse. Striking Karadon countertops provide a bright and practical work surface, blending designer appeal with everyday functionality. The galley is turnkey and fully equipped with silverware, China, crystal and cookware that are secured in designated storage to protect delicate items while underway.

Galley Features Include:

•GE Profile full-size, side-by-side Refrigerator (New in 2019)

•Jenn-Air Cooktop and Oven

•GE Microwave/Convection oven (Model JVM1190)

•Fisher & Paykel dishwasher drawers (new 2020)

•Broan #1501 trash compactor

•In-Sink-Erator Garbage Disposal

FLYBRIDGE

FLYBRIDGE

Flybridge navigation equipment includes:

• Furuno radar and chart plotter displays

• Engine monitoring instruments

• Autopilot controls

• VHF communications

• Bow thruster controls

• VHF communications

The flybridge helm is fully integrated with the pilothouse electronics, providing redundancy and flexibility while underway. The helm layout offers excellent sight lines forward and to both beam directions, making docking, maneuvering, and passage-making intuitive from the flybridge. The flybridge also provides an expansive outdoor entertaining and command area with excellent visibility while cruising. A factory fiberglass hardtop with new Isinglass (full enclosure), updated in (2022,) provides protection from the elements while maintaining excellent visibility. The teak deck was re-seamed in (2022,) enhancing both appearance and durability.

The flybridge also includes: • 32"Samsung t 32" Samsung television, concealed in an overhead compartment that hinges down for viewing

• Stereo system with surround sound

• Fusion directional pod speaker

• A built-in custom cabinet houses: Stainless-steel Sub-Zero refrigerator, ice maker, wine cooler and additional storage lockers

• Large fender storage cabinet, room for cruising gear

• Storage behind the flybridge settee is accessed from the boat deck

When the tender is launched, the flybridge opens into a generous sun deck, capable of accommodating up to eight chaise lounges, creating an exceptional area for relaxing and enjoying the views.

SWIM STEP, UTILITY AREA, CREW QUARTERS AND ENGINE ROOM

SWIM STEP, UTILITY AREA, CREW QUARTERS AND ENGINE ROOM

Entering from the swim step through a watertight transom door, you step into a spacious utility area designed for practical cruising and service access.

To starboard are lockers housing the Glendinning cable collectors, while to port is a crew mess equipped with sink, refrigerator, and microwave.

A stainless-steel workbench with storage for tools and spare parts creates a practical onboard workshop.

Forward to port are the air-conditioned crew quarters, featuring:

• Twin Bert with additional single berth below

• Lockers and draw

• TV and stereo

This space can also serve as guest overflow accommodations when needed.

Across the passageway is the crew head with stall shower and generous storage within American Cherry cabinetry.

An emergency escape hatch in the overhead provides access to the aft deck.

Forward through a watertight door is the engine room, a clean and well-organized mechanical space with approximately 6'8" headroom and excellent service access.

Here is a clean Engine Room section written specifically from what your photos show. No additional images, just text you can drop directly into the listing.

ENGINE AND MECHANICAL

ENGINE ROOM

The engine room aboard MAHANA is exceptionally clean, well-organized, and designed for excellent accessibility and serviceability. Finished in bright white with extensive overhead lighting, the space reflects careful ownership and professional maintenance.

Twin Detroit Diesel /MTU 12V2000 marine diesel engines, each producing 1,350 horsepower, provide reliable performance and efficient cruising. The engines are mounted with generous clearance on both sides, allowing easy access to all major service points.

Large air intake filtration systems, insulated exhaust systems, and clearly organized plumbing and wiring runs demonstrate the yacht’s thoughtful engineering and maintenance standards.

Engine room features:

• Northern Lights generator sets in sound shield

• Village Marine watermaker system

• Racor fuel filtration systems

• Sea strainers and freshwater cooling systems

• Engine room fire suppression system

• Engine monitoring and alarm systems

• Overhead lighting throughout the compartment

• Excellent access to mechanical systems and service areas

Wide walkways between the engines allow safe movement throughout the space, while the bright white finish, and clean mechanical installation, make routine inspection straightforward. Access to the engine room is through a watertight door from the utility area aft, providing safe and convenient entry while underway. The overall condition of the engine room reflects a yacht that has been carefully maintained and professionally serviced, providing confidence for extended cruising.

The engine room is a “show piece!”

TURN-KEY COMFORT

MAHANA is offered fully turn-key, including dishes, towels, silverware, and even custom monogrammed robes, allowing her next owners to step aboard and begin cruising immediately.

A more comprehensive list to be provided.

ELECTRICAL

MAIN MACHINERY

Main Engines:

(2) DDC / MTU 12V2000 DDEC 1350 hp

Engine Hours:

Port: 2,996

Starboard: 3,013

Inboard

Propellers:Bronze/NiBrAl 5-blade Design

GENERATORS & ELECTRICITY

Generators:(2) Northern Lights Port -32kw & Starboard 20kw

Generator Hours:

Port: 3236

Starboard: 3279

Shore Power:

100-amp 125/250 VAC shore power connected to (2) 50-amp 125/250 VAC cords

Cable Masters:

2) Glendinning cable masters

Batteries:

24 VDC starting batteries for each engine

Trace 4000 inverter with maintenance-free 24 VDC batteries (630-amp hours)

Battery Chargers:

Sentry 24v/40-amp battery charger

Sentry 24v/25-amp battery charger

Phase 3 12v – 22-amp battery charger

Alternator

DC alternator

AUXILIARY MACHINERY

Bow Thruster:Key Power hydraulic bow thruster

Stern Thruster:Key Power hydraulic stern thruster

Stabilizers:Westmar Gyro stabilizers

Under Water Lights:Yes

FUEL & OIL SYSTEM

Fuel Filters:(2) dual Recor fuel filtering system on each main engine

FIREFIGHTING & BILGE SYSTEM

Firefighting & Bilge Pump:Fireboy fire suppression halon automatic system

FRESH WATER SYSTEM

Fresh Water Makers:(2) Village Marine 80 gph watermakers

Air Conditioning:Cruise Air reverse cycle air conditioning throughout (serviced 3/2022)

SAFETY, SECURITY, & FIREFIGHTING EQUIPMENT

CCTV:Eplex CCTV with 4 cameras

Alarms:Bilge high water alarm

Fire suppression switch

ENTERTAINMENT, AUDIO/VISUAL AND IT SYSTEMS

Master Stateroom:Samsung TV with Apple TV and Direct TV

VIP Stateroom:Samsung TV with Direct TV

Guest Staterooms:Samsung TV with Direct TV

Exterior Aft Deck & Bar

Flybridge:32” Samsung TV hidden in overhead compartment, hinges down for viewing

55” Samsung TV hidden in overhead on a mechanized lowering device

CAPITAL IMPROVEMENTS

2026 Mechanical Services (Main Engines) Total Services: $147,168.93

•Both main engine heat exchangers cleaned, gaskets replaced and plates inspected.

•Removed engine air intakes, fuel lines, injectors, turbo chargers, exhaust

manifolds and exhaust crossovers.

•One charge air cooler removed and the charge air cooler base resealed.

•New head gaskets, injectors, fuel pipes and HP fuel lines.

•Air intake system new seals and gaskets.

•Exhaust manifolds new seals and gaskets.

•Turbo chargers new seals and gaskets.

•All hoses should be replaced. Also found

•Diffusers and elbows serviced

•New Vulcan couplers installed port and starboard side

2025 Electrical refresh

•Water maker pressure gauge on WM2 replaced 10/27/2025

•Both WM’s op tested no leaks Seatech. 10/27/2025

•GE Refrigerator water filter replaced 08/27/2025

•Inverter. Quattro 24 VDC 500 VA / 120 Remote control panel, Battery monitor

with remote and cables.

•8 new Lifeline 6 volt batteries GPL-6CT

•GE Refrigerator water filter replaced 08/27/2025

•Annual fire inspections on handhelds and C02 fixed system 7/28/2025

•Haul out 7/2025

•ULTRA KOTE BLACK bottom paint

•Propspeed on shafts props rudders and struts

•All 4 Hynautic hydraulics for trim tabs removed and reinstalled, rebuilt with new rods and seals.

•Port and Starboard main Seachest valves, hoses and clamps replaced

•Port and Starboard rudder seals replaced

•Rudder bilge pump replaced

•Hubbel smart Y, 50 to 100 amp combiner replaced 1/29/2025

PILOTHOUSE/COMMAND CENTER

PILOTHOUSE/COMMAND CENTER

The Raised Pilothouse Command Center serves as MAHANA’s primary navigation station while also functioning as a comfortable gathering space when cruising or at anchor. The 78' SonShip’s spacious command center is designed to accommodate the latest electronics and navigational equipment, all beautifully integrated within finely crafted rift-cut American Cherry joinery. Two, custom Ultra Leather Stidd helm chairs are mounted side-by-side at the helm, providing exceptional comfort and excellent visibility while underway.

Just aft of the helm is a raised U-shaped settee, surrounding a hand-crafted American Cherry dinette table, with a Madrone Burl top. A removable and storable leaf allows the table to expand for additional seating. When the yacht is not underway, the two Stidd helm chairs rotate 180 degrees to face the table, adding two additional seats and transforming the pilothouse into a comfortable dining area where family and friends can gather.

Port and starboard pilothouse doors open directly to the yacht’s wide walk-around side decks, allowing easy access while docking or handling lines. The pilothouse doors have opening windows, along with Phantom screens concealed within the doors, and two overhead hatches with screens can be opened to provide natural light and fresh air throughout the space. A beautiful newly carpeted and Stainless-Steel staircase leads from the pilothouse to the flybridge above.

The flybridge features a fully equipped upper helm station, allowing the captain to operate the yacht comfortably while enjoying excellent visibility and open-air cruising. Twin helm chairs and a stainless-steel steering wheel provide confident control

BOAT DECK

BOAT DECK

• Rendova 14' hardbottom inflatable with Fusion stereo, underwater lights and spotlights (Engine Hours: 221)

• Honda 70 hp outboard (2019)

• Removable chocks

• Steel Head fully functional hydraulic davit

• 8-person Zodiac life raft with hydrostatic release

• (4) Chaise lounges

• (4) Deck chairs

• EPIRB

• Antenna mast

WING DOCKING STATIONS

WING DOCKING STATIONS

MAHANA is equipped with Wing Control Stations, located on both port and starboard side decks, allowing the captain to operate the yacht from either side while docking or maneuvering.

These stations provide direct access to:

•

Bow and stern thruster controls

•

Stabilizer standby controls

•

Electronic Engine Control

Positioned along the wide walk-around side decks adjacent to the pilothouse doors, the wing stations give the operator excellent visibility of the dock, swim platform, and surrounding vessels, making close-quarters handling significantly easier.

EXTERIOR LIGHTING

EXTERIOR LIGHTNING

MAHANA is equipped with an extensive exterior accent and underwater lighting system that can toggle between crisp bright white and a brilliant deep blue. The underwater lights illuminate the water surrounding the yacht, creating a dramatic nighttime presence both at anchor and in the marina. Achieving the perfect shade of blue was no small task—the owner spent nearly six months refining the color, resulting in the striking visual effect seen today.

NAVIGATION & COMMUNICATION SYSTEMS

NAVIGATION SYSTEMS

Monitors:

15” Monitor (2019)

Displays:

(2) Furuno multi-displays (master and crew quarters)

Furuno depth display (2016)

Furuno speed display (2016)

SSB radio HF Marine ICM – 802

Stand-alone computer with Cmax software, RF mouse and keyboard

Ocean PC 15" display

Radar System

SSB radio HF Marine ICM – 802

Furuno 7252-6 radar with 20-meter cable

Furuno 1942 backup radar system

Chart Plotter:

Furuno MaxSea TimeZero Explorer chart plotter (2019)

Tracking ball for plotter

Magnetic Compass: KVH Azimuth 1000 digital compass

Ritchie Compass

Simrad Rate compass upgrade

Auto Pilot: Simrad AP20 autopilot repeater

Color Sounder: Furuno FCU582 color sounder

Link System: Furuno Link system (new 2016)

DGPS: Northstar 952 DGPS with combo antenna

VGA: GA splitter with 50' cable

Wind Instruments: Furuno wind masthead unit (2016)

Furuno wind display (2016)

COMMUNICATION SYSTEMS

Intercom System: Intercom speakers

VHF Digital Radios:

ICOM M127 VHF radio

ICOM UA4 hailer

Anchor Chains:400’ chain and polished s/s anchor on bow roller

Anchor Windlass System:Muir hydraulic anchor windlass

Cranes: Number, Brand, Model, Max Load

Stern Rails: Removable s/s stern rails at swim step

Swim Ladder: Removable swim ladder

Air Horn: Dual air horn at brow

DISCLAIMER

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.