2023 Sirena Yachts

1. Hull number 67 of this very popular series 2. Winner of the Revelation of the Year World Yachts Trophy 3. Seakeeper 9000 Gyro Stabilization 4. Over $600,000 in upgrades during build 5. American-flagged, US Duty Paid, with US delivery available 6. Outstanding three-stateroom layout with en-suites, plus crew 7. German Frers' Naval architecture and design work 8. Tried, tested, and equipped for long-range family cruising

The Sirena 58 VIAKAREY is designed to perform efficiently across a wide range of speeds, with a displacement mode that allows extensive range for long cruising legs and a planing mode that provides faster cruising speeds to optimize time. With comparatively low fuel consumption, Sirena Yachts and German Frers have created a hull capable of carrying her owners on long passages, and the stability and comfortable ride ensure they will enjoy the voyage. The volume of the hull is quite large for her LOA, allowing the available space to be used to create a more open layout than is common on a boat of this size, with lines of sight and headroom more typical of a much larger yacht. The result is a combination of clean lines and airy spaces that help to focus the mind while relaxing the body. VIAKAREY is offered by her original build owner following an amazing Mediterranean cruise, shipment to the United States, and light use in South Florida and the Yucatán Peninsula. VIAKAREY’s interior, imagined by Tommaso Spadolini, is a bright, modern sanctuary marked by expansive hull portlights in the primary and VIP staterooms and striking glasswork throughout the main deck. Her main salon is midship, filled with natural light, and effortlessly transitions between lounging and dining for six to eight guests. The galley is full-beam and aft, offering direct access to both interior and alfresco dining areas, with generous storage and five-star culinary capability. Accommodations aboard are smartly arranged, offering a three-stateroom layout with en-suites, plus crew quarters for two. The full-beam primary suite sits midship and features a centerline king berth, his-and-hers hanging lockers, lounge settees, and a large en-suite with stall shower. The VIP stateroom is forward with a queen island berth, ample storage, and its own private head and shower, while the guest cabin features twin berths, a hanging locker, and en-suite bath. Outdoor living is where VIAKAREY truly shines. Her foredeck is designed for versatile relaxation, with a convertible sunpad, pop-up mood lighting, and a built-in settee and dining table, all shaded by optional carbon poles and awning. Wide walkarounds lead to a well-sheltered aft cockpit, where a centerline settee and dining table sit beneath the flybridge overhang. Water access is seamless via transom steps port and starboard, while large sliding glass doors and a pantograph side door connect indoor and outdoor spaces with ease. Above, the flybridge offers a vast, well-appointed escape rarely seen on a yacht of this size. The helm station delivers superior control and comfort with clear sightlines, while guests enjoy a convertible lounge, built-in dining area, and a full suite of amenities: grill, drinks fridge, ice maker, propane hob, and teak decking with max thickness option. A carbon fiber hardtop with electric awning adds flexible shade to this social centerpiece. Tried, tested, and optimized for long-range family cruising, VIAKAREY combines the assurance of Sirena’s proven platform with bespoke features and upgrades tailored to the lifestyle of a modern yachting family.

Mechanical & Systems 11.5 kW backup generatorElectric stern thruster with variable speedJoystick control engines and thrusters (main helm and flybridge)Watermaker, 34 gal/hourFreshwater deck wash systemOil change systemSeakeeper 9000 N·m stabilizerDedicated charger and battery for bow thrusterMighty Pure ultraviolet purification system for drinking waterStarlink Performance Gen 2 system Electronics & Navigation Garmin Platinum Navionics Package, including: Two 16" multifunction displays at the lower helmOne 16" display at flybridge helmGarmin / Volvo engine monitor displays at both helms (standard)Garmin Fathom open-array radarGarmin fishfinderGarmin Class B AISGarmin IP cameras (engine room and flybridge)Additional 10" Garmin display on flybridge helm console Exterior Features Carbon hardtop with electric awningForedeck area tent with carbon polesForedeck manual hi-lo teak table with coverTeak-laid flybridge decking (maximum thickness)Electric searchlight with dual-station controlsCourtesy and pop-up lighting on main deckCourtesy lighting on flybridgeFour bi-color underwater lights (stern)Three flush-mounted aft flybridge floodlightsTeak flag pole (aft flybridge)Tender cradles in teak (not installed)Flybridge wet bar with barbecue, refrigerator, and icemakerCockpit GRP storage unit (configured for refrigerator, third joystick station, or sink)Cockpit sink/faucet unitAft flybridge U-shaped GRP seating arrangement with coverFixed cockpit table with teak top and coverThree varnished teak exterior tablesThree additional 110V exterior outletsFour folding cockpit chairsShower intentionally omitted from flybridge per owner option Interior Features Crew/4th cabin with two single berths, head, air-conditioning, and pantograph door to swim platformSaloon side pantograph doorElectric skylight window with electric sunshadeWashing machine (aft storage area, saloon, or engine room—depending on installation option)Safe in master cabinFour additional 110V interior outletsMaster cabin toilet with integrated bidetBracing and attachment points installed for second crew cabin berth Entertainment & AV 43" Smart LED TV in master cabin50" Smart LED TV in saloonFusion RA70 exterior audio system with independently controlled flybridge and foredeck zones

Full beam galley aft in salon offering easy access to the aft deck dining and lounging space, as well as interior dining salon space. There is an abundance of storage throughout and all the necessary accoutrements to satisfy your five-star culinary desires.

Primary: Full beam and mid ship with king centerline walk around berth, mirror-imaged his and hers hanging lockers, drawer storage, settees, and ensuite head with stall shower. VIP Guest:Forward with queen walk around island berth, hanging lockers, cupboard storagecabinets,and ensuite head with stall shower. Guest: Two single berths, hanging locker, ensuite with shower. Crew: Aft accessed from transom. Two single pipe berths, hanging locker, en-suite head with stall shower.

A semi-displacement hull form combines the efficiency of traditional displacement designs with the ability to achieve higher speeds when required. While these vessels typically operate in displacement mode—maintaining excellent fuel efficiency—they can take advantage of increased power to reach significantly greater speeds when conditions demand.Compared with full-displacement hulls, semi-displacement designs draw less water and have reduced wetted surface area. This reduction minimizes drag and requires less horsepower to propel the vessel. As a result, a semi-displacement hull can deliver approximately 35% more speed at the same engine load as a full-displacement hull, or alternatively, it can operate at the same speed while consuming substantially less fuel and energy.The hard-chine configuration of a semi-displacement hull also contributes to superior stability compared with the rounded bottoms characteristic of full-displacement designs. This improves comfort both underway and at anchor, where semi-displacement vessels typically exhibit significantly reduced rolling motions.

The vessel’s structural design is fully compliant with EN-ISO 12215 standards. The hull, deck, and superstructure are constructed using advanced composite sandwich technology, which enhances strength, reduces overall weight, and ensures consistent build quality. Sirena Yachts employs vinyl ester resins for maximum resistance to osmosis and superior surface finish, enabling the shipyard to provide a five-year warranty against osmosis.The deck and superstructure incorporate carbon-hybrid reinforcements, providing an optimal balance of rigidity and lightness. Structural bulkheads are fabricated in PVC foam-core sandwich construction and are secondary bonded to the hull through lamination, ensuring a robust and unified structure throughout the vessel.

Halogen-free and self-extinguishing cablesBounding system with 2 sacrificial anodesGrounding systemGalvanic isolator220V AC - 60Hz with shore connection24V DC - 12V DC with negative groundingInverter 1000W - 24 / 220V - 60Hz

1 x 17,5kW - 60Hz Cummins 1 x 11.5 kW backup generator

VIAKAREY is equipped with a78,000 BTU/h marine air-conditioning systemengineered to provide efficient, zoned climate control throughout the vessel. The system utilizes multiple air-handler units to deliver balanced cooling to the salon, staterooms, and lower accommodations, ensuring optimal comfort at anchor or underway.

2 X VOLVO PENTA D11C1 A-MP, 670HP eachZF 325 IV Gearbox (Ratio 2.037:1)63,5 diameter duplex F51 Shaft (Shaft angle 8 degrees)Aluminum bronze P bracket800 x 830 mm 5-blade propellersPSS Shaft seal

Servo electric power-assisted steering system and autopilot systemGarmin autopilot systemRudder blade in aluminum bronzeDynamic automatic trim control via interceptors8 kW variable bow thruster- 24VDC, D. 250 mm

Shore power socket 220V - 50APower lines are protected by dedicated GFCI circuit breakers50' shore connection cable

8 x 95Ah batteries for service4 x 180Ah batteries for engine start1 x 95Ah battery for generator start1 battery charger - 24V/80A for service1 battery charger - 24V/30A for starting batteries1 battery charger - 12V/15A for generator battery

BILGE SYSTEM 24 V electrical bilge pump in engine room24V automatic electrical bilge pump 24V in the accommodation areaManual bilge pump located at the aft deck under the mooring area.4 Bilge level alarms2 Bilge high-level alarmsEngine room emergency pump through a diverting valve fitted on the engine seawater cooling lineEach electric pump can be manually activated by switches placed in the helm station FIRE EXTINGUISHING SYSTEM Seafire Novec manual and automatic extinguishing agent in the engine roomAutomatic shutdown systemAlarm on helm station and flybridge dashboards FUEL SYSTEM 2 x stainless steel tanks (total 3.600 liters) located in the engine roomFuel level indicator for each tank on the monitoring systemVisual level gauge on port and starboard tanks1 single separation filter for the generator2 single VOLVO separation filters for engines FRESH WATER SYSTEM HDPE tank (800L)Self-priming fresh water pumpTank level indicator and empty status integrated into the monitoring system60 liters water heater 220V - 1200WHot and cold water in all headrooms, galley, cockpit, flybridge sink, and fly showerCold water outlet in the engine roomFilling the cap on the side-walkingShore fresh water connection BLACK WATER SYSTEM HDPE tank 450 liters capacityTank level indicator integrated in the monitoring system3/4 and full tank indication in the headsFresh water toilet flushingHolding tank discharge via suction on deckOverboard discharge of wastewater via a dedicated line at the exit of the holding tank GRAY WATER SYSTEM HDPE tank 225 liters capacity3 sump tanks under master head3/4 and full tank indication in the heads and galleyWater drainage from showers and sinks into the tankLevel sensor integrated into the monitoring systemWater drainage via manifold (24V membrane pump)Manual/Automatic overboard discharge SEA WATER SYSTEM 2 seawater intakes with filters and valves for the engine cooling system1 seawater intake with a filter and valve for the generator cooling system1 seawater intake with filter and valve for the chain wash and deck wash system

Walker Bay Generation 12 LTE in Black Carbon with 40 YamahaCustom Boat CoverMocha SeaDek Flooring kitVHF Radio7" Garmin GPSBluetooth Stereo with (2) speakers2 x LED Underwater LightsRemovable Stainless steel boarding ladder