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2018 Cruisers Yachts 50 Cantius

Grateful III


GYS Listing

Longboat Key, Florida, United States
  • 3 Staterooms
  • 2 Heads
  • 2 Engines

2018 50 Cruisers Cantius "Grateful III" for sale! "Grateful III" is owned by a very knowledgeable Owner and is Captain Maintained! This Vessel is truly ONE OF A KIND with her very well-thought-out custom additions that come from the Owner and Captain’s many years of experience at sea making this yacht significantly more functional than what you get straight from the factory! "Grateful III’s" Interior and Exterior storage capacities have been significantly increased with thoughtful utilization of dead space in key areas. You can never have too much storage space on a boat! This Vessel is the definition of safety and functionality. She has additional grab rails in all of the most key areas like the Master Stateroom, swim platform, walkways to the bow, companionway stairwell, and lower atrium. If you are an avid boater, but mobility aboard is keeping you from taking the plunge into your dream yacht. "Grateful III" is the Yacht for you! Don’t miss out on seeing the many other features this boat has to offer! Make your appointment for a showing today! 

  • Last updated Jun 19th, 2024
  • 3 Saves


Quick Specs

Country: United States
Category: Motor Yachts
Model: 50 Cantius
Model Year: 2018


Cabins: 3
Heads: 2
Sleeps: 6

Hull Information

Hull Material: Fiberglass


Length: 50 ' (15.24M)
Draft: 3' 11" (0.912M)
Beam: 15' (4M)


Fuel Capacity: 450 G. 1703 L.
Water Capacity: 111 G. 420 L.
Holding Tank: 70 G. 264 L.


Engine 1

Engine Make: Volvo
Engine Model: D6 IPS 600
Engine Year: 2018
Engine Type: Inboard
Power HP: 435
Fuel Type: Diesel
Engine Hours: 542
Engine Location: Port

Engine 2

Engine Make: Volvo
Engine Model: D6 IPS 600
Engine Year: 2018
Engine Type: Inboard
Power HP: 435
Fuel Type: Diesel
Engine Hours: 542
Engine Location: Starboard



  • Moving through the Galley and forward you will arrive at the Salon/Dinette space featuring a Samsung Flatscreen TV with upgraded pivoting wall-mount.
  • Polk Audio Stereo Control Unit w/ USB Connectivity
  • Crusair AC Thermostat Control Pads
  • GFCI 110V Outlet
  • Starboard Side Sofa w/ removable cushion backs exposing a custom storage space and thus, increasing overall storage volume withing the vessel.
  • Forward of the sofa, but directly aft of the Helm Seat is a custom Flip up panel exposing another customized Bottle storage space adding to the functionality of the boat.
  • To port is the U-shaped Dinette space w/finished folding wood table and stainless-steel pedestal.
  • Custom storage has been added underneath Dinette seating further increasing Grateful III’s overall interior storage
  • Overhead Retractable Sunroof


  • Garmin Glass Cockpit Electronics Package
  • Twin 18” Displays
  • Beautiful and thoughtfully crafted Custom Dash Constructed after the fact to block glare and angling Displays closer to Captain to improve ease of use of electronics
  • Adjustable Helm-wheel
  • Vessel Switch Panel for various systems
  • Garmin VHF w/ VHF speaker and Volume Control
  • Searchlight Control Pad
  • Fire Safety System Override
  • Volvo Joystick for docking
  • Volvo Electronic Engine Controls
  • Trim Tab controls w/ LED Indicator lights
  • Volvo Push Button Engine Start/Stops
  • Modified Helm Seat wrapped in coco leather upholstery. Helm seat features fold down armrest, flip up bolster, and adjustable slide track which has been modified to eliminate getting hung up on the lever as you enter and exit the helm seat. Helm seat was also raised for better visibility and the addition of a custom high-volume storage drawer.

Aft Deck:

  • U-shaped aft seating lounge wrapped in two toned premium upholstery
  • Beautiful, finished wood table with black inlay on a stainless-steel pedestal
  • Integrated Cup holders
  • Decking is non-skid and features snap-in grey grass mat flooring mats
  • Stainless steel grab rails throughout
  • Forward is a molded-in mezzanine bench seat w/ integrated cup holders
  • Volvo Joystick Aft docking Station w/ Volvo secondary engine display
  • Overhead courtesy lighting
  • Stereo Speakers in hardtop
  • Aft deck is covered in a beautiful aluminum cockpit sunshade custom built by Artful Canvas. Premium powder coated White finish w/ integrated LED lighting, and aft viewing Garmin Camera. This setup allows for shading of the aft deck at any speed!
  • Port and starboard access to swim platform via Stainless steel gates.
  • Port and starboard access to bow area w/ upgraded stainless grab rails installed
  • Custom storage added underneath aft seating lounge cushions to further increase the Vessel’s exterior storage volume.

Swim Platform:

  • Swim Platform is Hydraulically actuated and sports a non-skid decking and convertible staircase when platform is lowered
  • Electrically actuated trunk storage
  • Port and Starboard Hatch storage w/ access to platform wired remote and glendinning cablemaster switch control
  • Molded-in grill center featuring an electric grill, prep top, and integrated drink holders.
  • Additional stainless steel grab rails were installed for increased safety and mobility of all persons aboard.
  • Stainless steel telescopic swim ladder covered by custom deck hatch.
  • In-deck stainless steel pole mounts for boarding staircase handrail holding points purposed for safety while boarding onto swim platform.

Foredeck/Bow Lounge:

  • U-shaped bow lounge sunbeds beautifully molded into vessel’s foredeck
  • The lounge is wrapped in two toned upholsteries and features flip up lumbar supports.
  • Finished teak table on custom hinge allowing for it to be folded down and placed underneath the center cushion for added lounge space.
  • Four stainless steel deck mounts to allow for mounting of stainless-steel poles to suspend the Mediterranean Sunshade
  • Foredeck is safely wrapped in a stainless-steel bow rail
  • Access hatch to forward anchor locker.
  • Deck mounted windlass foot switched for anchoring at bow


  • The Galley is aft and has a U-Shaped Galley top arrangement.
  • Galley Countertops white Corian
  • Large Stainless Steel Sink w/ filler to add more countertop space when sink is not in use
  • Vitrifrigo Stainless steel refrigerator and freezer drawers
  • Ash Gray Amtico Flooring throughout Galley
  • Muave’ Stainless Steel Microwave/Convection Oven
  • Ample Under-counter drawer and Cabinet storage.
  • Above-counter cabinet storage has been customized beautifully to increase volume of storage that exceeds the original Manufacturer allotment. ( A MUST SEE!)
  • Retractable patio window.


  • Atrium Style Companionway w/ ample natural lighting
  • Plush Carpeting throughout
  • Access to Master Stateroom, Guest head, VIP Guest Stateroom, and Starboard Guest Bunkroom
  • Additional Custom Handrails installed throughout for added safety and mobility of Owner and Guests aboard the Vessel

Master Stateroom:

  • Master Stateroom is Full Beam
  • Custom sloped flooring entering the Master to eliminate step down into Stateroom. Sloped flooring unit is removable.
  • Plush Carpeting throughout
  • Two End tables w/ Cabinet Storage
  • Custom stone and Mirrored Headboard
  • Ample Cabinet and Drawer Storage to Starboard
  • Wall Mounted Flat Screen TV
  • Built-in storage below TV
  • Polk Audio Stereo Unit
  • Combo Washer/Dryer located in storage cabinet
  • Large hull-side glass windows w/ opening port hole to port and starboard.
  • Chaise lounge to port.
  • Large Hanging locker
  • Custom filler installed in floor to make Master floor one level and increase vessel’s ease of mobility.

Master Head:

  • Grey Oak Amtico Sole
  • Dometic Electric Head
  • White Corian Vanity Top
  • Mirror finished Cabinet storage above Vanity
  • Light and Exhaust Fan Switches
  • Under-counter Cabinet Storage
  • Overhead Lighting for Head and Shower
  • 110 outlets w/ GFCI
  • Large Stand-alone shower w/ molded in bench seat
  • Custom Shower inlay.

VIP Stateroom:

  • Queen Island Berth
  • Custom Bedcover
  • Under-Berth Drawer Storage
  • Plush Carpeting throughout
  • Courtesy reading lamps
  • Overhead Skylight Hatch
  • Crusair AC Thermostat Control Pad
  • Switching for lighting
  • Hull-side windows to port and starboard w/ custom blinds
  • Private access to Guest Head
  • Large Hanging Locker to Starboard

Guest Stateroom:

  • Stacked Bunk Arrangement
  • Plush Carpeting throughout
  • Hanging Locker
  • Ships Electrical Breaker Panel in Forward Cabinet
  • Hull-side window w/ opening porthol
  • Drawer storage below lower bunk
  • Overhead courtesy lighting

Guest Head:

  • Grey Oak Amtico Sole
  • Dometic Electric Head
  • White Corian Vanity Top
  • Mirror finished Cabinet storage above Vanity
  • Light and Exhaust Fan Switches
  • Under-counter Cabinet Storage
  • Overhead Lighting for Head and Shower
  • 110 outlets w/ GFCI
  • Large Stand-alone shower w/ molded in bench seat
  • Custom Shower inlay.

Engine Room:

  • Twin Volvo D6 Marine Diesel Engines coupled to IPS 600 Pod Drives
  • Kohler 15kW Generator; Model 16EK0ZD with Sound Shield
  • Reverso Oil Change system for Main Engines and Generator
  • Twin ProNautic 24-30P Digital Battery Chargers
  • Primary Fuel Filters w/ glass bowls for Main engines and Generator
  • AlgaeX Fuel conditioning system
  • Dometic Air Conditioning Condenser Unit
  • Dedicated storage for Stainless steel poles
  • Dedicated storage for extra fenders
  • Glendenning cablemaster unit with line coiling barrel
  • Fireboy Automatic Fire Extinguishing Bottle
  • Charles KVA 12 Isotransformer
  • Whirlpool freshwater filtration unit
  • Bucher Hydraulics Electric Hydraulic Pump for Swim Platform
  • Bennet trim tab pump
  • Custom storage rack and winch system for storing aluminum boarding stairwell in engine room ceiling

Hull & Decks:

  • Hull-sides and decks are white gel coat
  • Non-skid decking throughout
  • Stainless Steel Bowrail
  • Nibral Propellors
  • (10) Stainless-steel mooring cleats
  • Vessel Navigation lighting
  • Garmin HD7 Open Radar Array
  • VHF Antenna
  • Artful Canvas Custom Aft Sunshade
  • Freshwater Inlet
  • Hard Vinyl Rub Rail with Stainless-Steel Insert
  • Stainless-Steel Grabrails and Handrails installed in all Vessel Deck areas
  • Molded Fiberglass Sunroof powered by Electric Actuators
  • Vessel Search Light
  • Bennett Trim Tabs
  • Volvo Anti Corrosion Bonding with Zinc Anodes
  • Anchor Windlass coupled to Thru-stem polished stainless steel Danforth Plow style anchor


  • Seller’s Personal Items

Listing MLS by


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.

Engine hours are as of the date of the original listing and are a representation of what the listing broker is told by the owner and/or actual reading of the engine hour meters. The broker cannot guarantee the true hours. It is the responsibility of the purchaser and/or his agent to verify engine hours, warranties implied or otherwise and major overhauls as well as all other representations noted on the listing brochure.

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