Introducing Fantasea — A Premier Sirena 64′ with over $600,000 in upgrades listed below:

Fantasea is a meticulously maintained, extensively upgraded Sirena 64′ that stands out as one of the most highly-optioned vessels in her class. Thoughtfully designed by experienced owners and cared for by a professional crew, she has maintained to true yacht-quality standards with no expense spared. An open checkbook would be an understatement to describe the level of care Fantasea has seen.

Key Upgrades:

Additional shore power connectivity

Lithium battery banks for extended off-grid performance

Increased fuel capacity for longer cruising range

A second Onan generator(17.5kw) totaling 126 amps— with one generator fully capable of powering the entire vessel

Upgraded 45 GPH water maker with new membranes (April, 2024)

Electrónica:

Doble Garmin 8422 MFDs at the lower helm

Doble Garmin 8616 MFDs on the flybridge

Garmin GMR Fantom 5X radar

Panoptix PS51 forward-scanning sonar

Garmin GSD 25 advanced sonar (one calibrated for surface water, the other for below the props)

SiriusXM GXM 54 weather, radio, and fish mapping receiver

Garmin GMI 20 displays and GRID remotes at all stations, including the crew quarters

Nuevo Marinco destacar

Full RGB exterior lighting

Full boat phone comm system with access to engine room, crew, vip, and master

Hailer/Fog integration separate from VHF

Adicional Guardián marino controller for flybridge helm station. 

TowPro installed for tender towing

Fusion controllers for each exterior zone

Camera system installed for remote monitoring anywhere in the world

50 HZ 220 volt outlets intact

Mecánico:

Guardián marino 16 with 783 hrs

cummins onan Port and starboard generator @ 1645hrs

Oruga extended warranties through 2030 on both her GATO motores 

The upgraded Lithium house battery bank powers all onboard systems, including air conditioning, for 8-10 hours of silent, generator-free operation — ideal for anchoring in remote locations without sacrificing comfort.

Stern Thruster UPGRADED from 10″ to 12″ (5 blade).

800lb Estructuras Náuticas davit added to flybridge ($20,000)

NUEVO Dometic 60,000BTU & 48,000BTU Compressors (2024)

Engine room air conditioning 

Sonihull 8- Ultrasonic Antifouling System: Fantasea is outfitted with a premium Sonihull Ultrasonic Antifouling System, featuring eight high-performance transducers strategically installed to protect the entire hull and underwater running gear. This cutting-edge technology uses ultra-frequency sound waves to prevent barnacles, algae, and biofouling from attaching to submerged surfaces — eliminating the need for traditional antifouling paint or harsh chemicals. ($15,000)

ElectroSea system installed on air conditioning raw water system

Gulf Coast Filters Fuel Polisher F1 installed in the engine room

 Instalado SPC15 Frequency Converter per shore powerline (be able to connect power to anywhere in the world).

YachtController instalado

Cazatalentos MSD 400 Sanitation system ($50,000)

Webasto air handlers throughout the interior

(8) Lithium MG2100 amp- hour battery bank

BMS safety monitoring system for lithium batteries

Fully extendable passerelle

Custom Upgrades: 

Upgraded anchor for additional holding power

Custom hoop and flagpole bow railing

Spreader lights off aft quarters for hip tender tying and docking

Upgraded helm chair

Custom marble bar top on flybridge

Frigibar (DC power) deep freezer custom added to sundeck ($12,000) with isolated breaker switch

Additional ice maker in flybridge cabinets

EZ Bike chaulks on sundeck

Custom life raft holder (with life raft) built into starboard side flybridge railings

Custom paddle board racks off port and starboard

Custom flagpole

200 gal keel fuel tank for added range (1520 gallons total)

Amp meter added to both generators to monitor amperage draw real time.

Helm Station:

Independent chiller controls for load splitting

Independent CZone pantalla 

Inverter controls

Distribution board re-engineered breaker panel for each powerleg

Gemelo Victron Quatro 24/8,000 inverters

Invictron VRM boat power monitoring system

Exterior: 

Flybridge EZ2CY enclosure ($15,000)

Aft deck seating fans/lights

New bow exterior cushions covers

Custom aft deck varnished table ($15,000)

Additional bartop/grill added to flybridge with custom covers ($16,000)

Upgraded mast shower with removable sprayer.

Interior:

Aigen WIFI System with enlace estelar

All televisions upgraded to Samsung Frame SmartTv

Ozone machine installed in each stateroom

Custom cabinet above the laundry machine

Master stateroom is equipped with Apple TV, DVR, DirecTV, and a safe

With over $600,000 in capital improvements, Fanta Sea represents an extraordinary opportunity to own a turnkey luxury yacht built for performance, autonomy, and adventure.