Search Icon

Mahalo Ke Akua 58' Kong & Halvorsen Island Gypsea 51 1995

$ 284,500

Gorgeous blue-water trawler, already in the Caribbean! 

This rugged and classic lined trawler has been carefully maintained and operated by a few long time owners since new. Continuously updated to reflect current technology (high output solar panels, Lithium batteries) and a litany of upgrades over the years, "Mahalo ke Akua" has the classic line that makes your head turn (expect a lot of compliments every time you are in a marina) and offers excellent fuel efficiency / range with a very sea-kindly motion. Two large staterooms, Portuguese bridge, fly-bridge, a full set of Garmin electronics, large tender and so much more. 

58' feet LOA, and 51' over deck

"Mahalo ke Akua" is already in St Thomas, and is turn-key. You can be cruising this winter. Replacement cost for a >50' trawler is well over $2m. This one is priced to sell quick. 

United Yacht Sales is pleased to assist you in the purchase of this vessel. This boat is centrally listed by Denison Yachting. It is offered as a convenience by this broker/dealer to its clients and is not intended to convey direct representation of a particular vessel


  • Price USD:$ 284,500
  • Builder:

    Kong & Halvorsen

  • Model:

    Island Gypsea 51

  • Year:


  • Location:

    Gustavia , Saint Barthélemy

  • Type:

    Power Yacht

  • LOA: 58 ft in
  • Display Length: 58 ft
  • Beam: 15' 4"
  • Yacht Category

    Motor Yachts

  • Water Capacity: 135 gals
  • Fuel Capacity: 800 gals
  • Engine Details: Caterpillar 3208TA
  • Engine 1: 1995 3500.00 HRS 435.00 HP
  • Engine 2: 1995 3500.00 HRS 435.00 HP
  • Engine Fuel: Diesel
  • Days on Market:

Starting at the bow looking aft, this 58' blue water trawler has a large forward deck that ends at the center-line door. Her "Portuguese Bridge" wraps around the forward area of the vessel. As one moves aft, she has covered side decks that continue around to the aft deck. Along the side decks on port she has a door to the pilot house and on starboard she has a side door to the pilot house and a 2nd one just aft into the salon level. Her side and alt decks are covered with solid hand laid teak.

Entering the salon through the aft deck there is a bar to the port side. Moving forward she has a built in L-Shaped Settee with a hi-low table on port and 2 x lounge chairs (one reclining, one massage chair) to starboard. The galley is forward of the settee and features solid surface countertops. Just forward she has a storage cabinet and sliding side door to the exterior, Beneath the salon floor there is more storage full width and features teak cabinetry and a 24-bottle wine rack. Along the wall towards the pilot house there is a pantry and washer/dryer combo. Moving up two steps to the pilot house she has a wide seat with table along the aft wall, interior stairway over her bridge, lower helm with chart storage forward and side doors both port and starboard. Two levels have teak flooring. As you move down to the stateroom level, she has two staterooms and a head. Forward she has an island queen berth and abundant storage. On starboard she has a massive stall shower with entrances to both the master and guest staterooms. She has a separate vanity with head for the master. The guest stateroom has a custom full berth along the starboard hull and head and vanity to starboard. Aft of the guest stateroom there is an area for storage, workbench and entrance to the engine room. Her engine room has standing head room forward, battery storage followed by her main engines and generator. The stateroom flooring is cork and head and shower areas are tile.

The fly-bridge has a full helm with a custom helm seat. She has L-shaped settee both port and starboard and is followed by the dinghy deck which has a davit and tender. The fly-bridge deck is teak and dinghy deck is painted. This yacht has been very well maintained since new. All manuals and records are on board. Overall cruising over the last few years she has averaged 1 nautical mile per gallon. 

Background on the builder: Only every so often does a vessel of this pedigree come to market. The Halvorsen Family moved to Cape Town, South Africa in 1924 and then Lars and his son Harold moved to Sydney, Australia in 1925 to build boats (the family came later), From 1925 to 1980 they built over 1500 vessels for individuals and the military. In 1960 Harvey Halvorsen (Lars' Grandson and Harold's Son) became the company designer and in 1975 he partnered with Joseph Kong (former American Marine General Manager) to form Kong & Halvorsen. Over the next 2 decades they built 100's of vessels from 34 to 134 feet under the Kong & Halvorsen, Island Gypsy and Halvorsen names. In 1985 Joseph Kong passed away and the Halvorsen family has continued building. At present over 900 plus Halvorsen influenced boats have been built in China and exported. Yachts like these rarely come on the market.  


-Garmin 5212 GPS chart plotter / radar / sonar (fly bridge)

-Garmin 741xs GPS / chart plotter / repeater with Wifi, can be controlled via iPhone or iPad (pilot house)

-Garmin GMR18HD36 radar

-Garmin GC20 autopilot (fly bridge, pilot house and wireless remote)

-Garmin GP20 autopilot smart pump

-Garmin heading sensor compass

-Sitex AIS with dedicated antenna AIS transmitter / receiver

-Standard Horizon digital depth sounder (pilot house)

-Dataline multi gauge depth and speed sounder (fly bridge and pilot house)

-ICOM M126 DSC VHF radio (pilot house)

-ICOM 127 VHF radio (fly bridge)

-ACR 100 remote search light (controls on fly bridge and pilot house)

-Danforth compass (Pilot house and bridge)

-35" flatscreen TV in salon (2022)

-Sea-watch digital TV antenna


Engine room:

-stainless steel engine intakes (inboard to eliminate mist)

-update & oversized cooling and lubricating system for main engines

-after coolers replaced and air boxes serviced

-dripless shaft logs

-fiberglass mufflers

-Racor 1000 fuel filters (main engines)

-Racor 500 fuel fitler (generator)

-Fluorescent lighting in engine room

-Drip pans under main engines

-Engine alarm systems

-Engine room blowers

-hynautic engine controls (fly bridge, pilot house and cockpit)

-Reverso oil change pump

-Groco sea water strainers

-CruiseAir air conditioning systems (5 units)

-engine room access thru salon sole or door inside guest cabin

-Glendenning engine synchronizer

-Fuel tanks painted

-prop tunnels

-Bennett trim tabs

-Rule high water alarms 3 x

-Hisense dehumidifier


Main deck:

-Full exterior Awlgrip paint

-Forward deck and bridge deck repainted

-Transom and side doors

-hot and cold cockpit shower

-Extended teak swim platform and swim ladder

-Davit 800 lbs

-Brig 10'6 rib with 20HP Honda (2016)

-Stamoid bimini top

-Fly bridge windscreen

-Maxwell windlass with controls at fly bridge, pilot house and foredeck

-Bruce plow anchor with all chain and Mantus swivel

-Fortress anchor with chain and rode

-Teak decks under covered side decks and cockpit

-Portuguese bridge with centerline door

-Stainless steel folding arch

-access to cabin from cockpit, pilot house and starboard side salon door, very good flow / access

-full width storage room below salon with cabinets and wine reack

-windshield wipers and washers (pilot house)

-Pompanette helm chair on fly bridge

-LED side deck lighting (red, blue or white)


Galley and heads:

-LG washer / dryer combo

-Raritan icemaker

-GE hotpoint fridge / freezer

-Grunert freezer (top load, in counter)

-Stainless steel sink

-Convection / microwave oven

-3 burner stove / oven (ceramic cook top)

-20 Gl hot water heater

-shore side water connector

-in counter trash bin

-teak and holly soles in salon, galley and pilot house

-cork flooring master / guest cabins

-tile flooring in heads

-Electric heads x 2


Electrical system:

-50A shore power cord (cockpit and forward connections)

-AMG batteries

-Magna Sine 2800W inverter / charger

-Onan 13.5kW generator in box (2400 hrs)

-Electrical transformer

-Inverter controller

-Battery isolator

-3 AGM batteries replaced 2021 and 2022 May

-2 x 100 watt solar panels installed July 2022 with Victron controller

-3 x Lithiums 300 watt batteries and 2 new 465 watt solar panels installed July 2022 with Victron controllers 

-2 x separate solar systems, AGM and Lithium

-Water maker "Little Wonder" 12V, 4.8Gl / hr

-Spare parts: Extensive list of spares including 2 x macerator pumps for toilet, 1 x macerator pump for tank, 2 x 110V saltwater pump for AC, 1 x waterpump for pressured water




Miscellaneous personal items available for sale (price to be negotiated), otherwise the owner will take them off and use them for his next vessel. 

2 x electric bikes

2 x mini Scuba Pony bottles with regulators and 12V compressor for fill up

2 x SUP boards with windsurfer set up

1 x Boogie board

2 x floating chairs

1 x beanbag chair

cordless pressure washer, Nespresso coffee maker, wet-dry vacuum etcetera

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.