SeaQuest 6.1 Olympian
  |  First Published: April 2005

In the hunt for a tough, handle-anything plate aluminium offshore fishing boat? Look no further than the SeaQuest 6.1 Olympian.

Renowned for its superior product and excellent value for money, Western Australian manufacturer Sea Quest is one of the largest builders of plate aluminium boats in Australia. With boats ranging in size from 4.5m crafts to large commercial vessels, the SeaQuest 6.1 Olympian falls pretty much in the middle of the company’s range, and is way ahead of everything else in its class.

Construction and layout

Despite this boat’s classy ‘too good to fish out of’ appearance, it’s tough enough to handle everything avid offshore anglers – and angry boatside marlins and sharks – can throw at it.

Measuring 6.6m overall, with a 2.5m beam, the 6.1 Olympian boasts a 5mm hull, 4mm sides, 3mm self-draining deck and full-size, fully welded frames throughout. As Mentone Marine’s John Willis put it, “it’s bullet-proof”.

“As an indication of just how well every SeaQuest boat is built, a customer recently bought a standard recreational package 6.1 Olympian off us, then decided he wanted to put it into survey,” John said.

“With around $1000 worth of adjustments, the Marine Board of Victoria (said to be one of the most stringent marine boards in Australia) passed the boat straight into passenger survey.”

Standard features on this boat include a raised dash with ample room for gauges and additional electronics; a folding aluminium targa bar with rocket launchers; Rae-Line padded seats on built-in seat boxes; bow sprit and bow roller; bow rail; drained anchor well; dash grab rail and tray (passenger); foot rests; rod holders; side pockets; battery storage; navigation lights; six-way switch panel; compass; transom door; glove box; marlin boards; transducer bracket; carpeted deck; scuppers; folding ladder; 200L underfloor fuel tank; non-feedback steering and more.

The testboat, as fitted by Mentone Marine, also had a bimini with front clears and side curtains; open V-berth with marine vinyl cushions, for long runs to the grounds or overnight trips; side pockets in cabin; Humminbird Matrix unit (although a Garmin FF250 CD colour fishfinder is standard in the fit-out package); 27mHz marine radio; plumbed livebait tank, ideal for slimies and other baitfish; aluminium baitboard; large underfloor flooding kill tank; Dunbier Super Roller Wide Series (full drive-on, drive-off) tandem trailer and Johnson 140hp four-stroke EFI outboard with multi-function tacho and trim gauges.

As tested, the SeaQuest 6.1 Olympian boat is priced at around $60,000, including boat and trailer registration and safety equipment for four people (with EPIRB). Further options such as a walk-through screen and deluxe hardtop are available. As it is, however, all it needs is a set of outriggers and it’s ready to venture off the New South Wales south coast in search of marlin or tuna.

On the water

In the yard and even hooked-up to a vehicle, the boat didn’t look that big. On the water though, the 6.1 Olympian not only looked big, but once onboard, it felt invincible!

The boat revelled in the short, sharp 0.75-1m chop that Port Phillip Bay turned on during the test. Fitted with a 17” pitch prop, the boat leapt out of the hole onto the plane and sat there comfortably doing 23km/h at 3200rpm.

Despite the less than favourable conditions, we experienced a comfortable, safe and dry ride at a cruising speed of 29km/h at 4000rpm. At Wide Open Throttle (WOT) pulling 6100rpm we reached 57.7km/h. Customers can opt up to a 19” pitch prop for more high-end speed, but being a fishing boat, propping down slightly is more beneficial for that extra grunt out of the hole.

Although not a top-end powerplant for this craft, the 140hp Johnson four-stroke has plenty of grunt for fishing. It had very good, yet not excessive, speed on the water, and was quiet and seemingly fuel-efficient. Those who want even more speed could look at a 150hp or even a 175hp.

With three people onboard, the 6.1m Olympian carried the weight well. According to John, the boat does the same speed whether there are three people onboard or five people. This is good news for offshore anglers considering all the gear that is taken on a trip to the shelf, and occasionally the catch that’s brought home. The 200L underfloor fuel tank can also be upgraded for an even larger tank, as an option.

At rest, the boat was extremely stable; even with three people standing on the one side, the boat hardly moved. This stability, along with walk-around decks for fighting fish and ample freeboard, further proves this boat’s worth as a trailer-friendly gamefisher.


In my opinion, the SeaQuest 6.1 Olympian is definitely well out in front of everything else in the race.

Like most boats built in Western Australia, it has to stand up to the coastal conditions in that part of the country. If it can handle what’s thrown at it in the west, it can surely handle the notorious waters of Bass Strait and beyond.

Suited to anglers who venture out from Victoria’s coast and off the South Coast of New South Wales, the SeaQuest 6.1 Olympian has already proven a popular package for the Melbourne-based dealer – and owners of the craft all say the boat is a winner.

If you’d like any more information about the SeaQuest 6.1 Olympian, you can contact Mentone Marine on (03) 9585 4566. They can be found at 119 Nepean Hwy, Mentone, Victoria or online at www.mentonemarine.com.au.


Plane: 23km/h @ 3200rpm

Cruise: 29km/h @ 4000rpm

WOT: 57.7km/h @ 6100rpm


Construction: plate aluminium

Length (overall): 6.6m

Beam: 2.5m

Bottom sides: 5mm

Top sides: 4mm

Transom: 25”

Weight (towing): 1600kg (approx.)

Fuel capacity: 200L

Rec hp: 115hp

Max hp: 200hp

Prop (as tested): 17”

Price (as tested): $60,000

The SeaQuest 6.1 Olympian can easily be carried on a trailer.

The 140hp Johnson four-stroke has plenty of power for fishing.

The interior is stylish yet functional.

Even in a bit of chop, it’s a smooth ride on the Seaquest 6.1 Olympian.

The SeaQuest 6.1 Olympian is 6.6m long and as tough as nails.

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