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Mon – Fri: 8 am to 9 pm & Sat – Sun: 10 am to 8 pm
Grady-White Marlin 300 is legacy offshore walkaround benchmark with true cruising cabin, built for offshore anglers and cruising families who want the proven 30-foot walkaround formula with real cabin volume, hardtop protection, and 700 horsepower.
The important question is not whether the boat is impressive; it is whether its systems match the owner; that distinction is central to the offshore walkaround-cruiser benchmark role. The Grady-White Marlin 300 is legacy offshore walkaround benchmark with true cruising cabin. Its purpose is offshore anglers and cruising families who want the proven 30-foot walkaround formula with real cabin volume, hardtop protection, and 700 horsepower.
The strongest reason to shop this exact model is 30-foot SeaV² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity. That combination places it differently from Adventure 218 or Express 340 even when the neighboring boats share SeaV² construction and Yamaha power; the 30-foot offshore cabin walkaround mission makes that tradeoff model-specific.
At 30’6″ long with a 10’7″ beam, the Marlin 300 creates an ownership footprint that should be matched to the tow vehicle, lift, marina, home dock, and normal passenger count before options become the focus; that point carries more weight in a offshore walkaround-cruiser benchmark.
The published 700 HP maximum and 282 gal fuel capacity describe real capability, but they also increase loaded weight, service exposure, and operating cost as the buyer climbs the Grady-White range; that is part of what separates a 30-foot offshore cabin walkaround from adjacent models.
Published factory figures. Confirm every dimension against the individual boat before you commit.
Grady-White’s SeaV² hull uses a continuously variable deadrise concept rather than one constant angle from bow to transom; that deserves extra attention on a offshore walkaround-cruiser benchmark. On the Marlin 300, the published transom figure is 19.5°, which should be interpreted alongside beam, weight, and intended water rather than as a single ride-quality score; the 30-foot offshore cabin walkaround mission makes that a structural rather than cosmetic issue.
The Marlin 300 weighs approximately 8,221 lb before engines, fuel, freshwater, gear, batteries, hardtop equipment, and people; that directly affects the hull decision for a offshore walkaround-cruiser benchmark. That makes a loaded lift or trailer calculation materially different from the dry specification; that measurement is especially relevant to a 30-foot offshore cabin walkaround.
Hull draft is 23 in. For a legacy offshore walkaround benchmark with true cruising cabin, that figure should be checked against the owner’s local ramp, inlet, sandbar, or shallow-water route before assuming another Grady-White uses the same access.
Inspect chines, strakes, keel, transom corners, through-hulls, rubrail, bow hardware, and all high-load deck fittings in natural light; that belongs in the structural review of a offshore walkaround-cruiser benchmark. Grady-White’s reputation for construction quality does not make prior impact or poor repair irrelevant; the 30-foot offshore cabin walkaround use case makes that hull detail more consequential.
Configuration: Yamaha outboard power; exact engine count and package vary by build
The Marlin 300 is an outboard-powered Grady-White, so propulsion inspection belongs at the transom: mounting, steering, trim, lower units, propellers, anodes, rigging, and flushing history; that belongs in the Yamaha due diligence for a offshore walkaround-cruiser benchmark. Its 700 HP maximum tells the buyer the power envelope, not the condition of the engines actually installed; the 30-foot offshore cabin walkaround mission makes that engine check more important.
The correct Marlin 300 engine package should be evaluated under the same load the owner expects to carry; that matters to the propulsion plan for a offshore walkaround-cruiser benchmark.
Full fuel, several adults, ice, tackle, water toys, cabin supplies, or offshore safety gear can expose an underpowered or poorly propped setup that feels fine on an empty demonstration; that should be documented carefully on a 30-foot offshore cabin walkaround.
Record every Yamaha serial number and engine hour figure; that is a meaningful mechanical check for a offshore walkaround-cruiser benchmark. Multi-engine Grady-Whites should have service histories reviewed separately because matched cowling colors do not prove matched maintenance; the 30-foot offshore cabin walkaround ownership plan depends on getting that right.
Local Yamaha support matters. A boat with a strong service network near its home marina can be a better long-term purchase than an otherwise similar example located far from qualified diagnostics and warranty support; that belongs in the Yamaha due diligence for a offshore walkaround-cruiser benchmark.
The Marlin 300 power decision should leave room in the ownership budget for fuel, scheduled service, lower-unit work, batteries, insurance, and eventual propeller or steering repairs; the 30-foot offshore cabin walkaround mission makes that engine check more important.
The Marlin 300 carries 282 gal of standard fuel capacity; that belongs in the range plan for a offshore walkaround-cruiser benchmark. That number belongs in a range calculation and a weight calculation, because full fuel can add hundreds or thousands of pounds depending on model size; the 30-foot offshore cabin walkaround role makes that load calculation more important.
Range should be estimated from the actual Yamaha engine package at a comfortable cruise, with a reserve; that matters when planning real trips in a offshore walkaround-cruiser benchmark. A performance test conducted with different engines, load, bottom paint, or weather should not be copied blindly into a trip plan; that should be part of fuel planning for a 30-foot offshore cabin walkaround.
For this legacy offshore walkaround benchmark with true cruising cabin, fuel use also depends on mission. Repeated offshore acceleration, trolling, sandbar idling, watersports, and long steady cruises create very different seasonal consumption; the offshore walkaround-cruiser benchmark mission gives that number practical context.
A legacy offshore walkaround benchmark with true cruising cabin should feel composed at the speeds its owner will actually use. The sea trial should therefore include dock maneuvering, acceleration with a realistic crew, ordinary cruise, turns, trim changes, and the conditions the boat will regularly see; that is part of the sea-trial story for a offshore walkaround-cruiser benchmark.
The 19.5° transom figure is one part of the SeaV² story; the 30-foot offshore cabin walkaround mission changes how that behavior should be judged. Entry angle changes forward, so the hull should be judged by how it meets chop, lands after crossing wakes, and maintains control instead of by one brochure number; that matters under the normal load of a offshore walkaround-cruiser benchmark.
During acceleration, watch bow rise and visibility; that should be verified on the water in a 30-foot offshore cabin walkaround. The boat should settle onto plane without forcing passengers to relocate or the driver to use excessive trim correction; the offshore walkaround-cruiser benchmark role makes that handling trait more important.
At cruise, listen for hardtop movement, hatch rattles, steering effort, unusual propeller vibration, and anything that appears only after the hull is loaded; that belongs in a proper sea trial for a 30-foot offshore cabin walkaround. A large Grady can hide minor systems problems at idle; that is part of the sea-trial story for a offshore walkaround-cruiser benchmark.
The Marlin 300 deck is built around 30-foot SeaV² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity. That feature set should be tested with people aboard rather than admired in an empty showroom; that directly affects daily use on a offshore walkaround-cruiser benchmark.
Walk the bow, helm, cockpit, and stern with the normal crew seated; the 30-foot offshore cabin walkaround role makes that a cockpit issue rather than a brochure detail. A legacy offshore walkaround benchmark with true cruising cabin needs clear paths for rods, coolers, dock lines, boarding, and family movement without constant seat rearrangement.
Open every fish box, storage locker, console compartment, cabin hatch, or under-seat bin; that matters when a offshore walkaround-cruiser benchmark carries its normal crew. Drainage, hinges, latches, insulation, and odor reveal more about ownership than polished cushions; the 30-foot offshore cabin walkaround layout makes that worth testing with people aboard.
The stern should be evaluated around the installed engine package; that is central to how a offshore walkaround-cruiser benchmark works at the dock or fishing grounds. Swim platforms, ladders, side doors, fold-down decks, and outboard spacing determine whether boarding feels easy or crowded; the 30-foot offshore cabin walkaround mission gives that deck detail practical value.
The Marlin 300 wins its comparison with Adventure 218 or Express 340 when this deck arrangement removes friction from the owner’s most common activity rather than merely providing more square footage; that directly affects daily use on a offshore walkaround-cruiser benchmark.
SeaV² Hull – SeaV² Hull matters on the Marlin 300 because the model is aimed at offshore anglers and cruising families who want the proven 30-foot walkaround formula with real cabin volume, hardtop protection, and 700 horsepower.
On the Marlin 300, walkaround side decks supports the legacy offshore walkaround benchmark with true cruising cabin mission rather than existing as a decorative option.
The Marlin 300 uses protected helm as part of its 30-foot SeaV² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity ownership story.
Cabin berth should be inspected for condition, drainage, hardware integrity, and real day-to-day usefulness.
On the Marlin 300, fishing cockpit supports the legacy offshore walkaround benchmark with true cruising cabin mission rather than existing as a decorative option.
The Marlin 300 uses insulated fish storage as part of its 30-foot SeaV² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity ownership story.
Boarding access should be inspected for condition, drainage, hardware integrity, and real day-to-day usefulness.
Overnight Utility matters on the Marlin 300 because the model is aimed at offshore anglers and cruising families who want the proven 30-foot walkaround formula with real cabin volume, hardtop protection, and 700 horsepower.
The Marlin 300 adds cabin systems to a fishing boat, so inspect berth ventilation, head plumbing, hardtop or enclosure hardware, helm electronics, livewell and fish-box pumps, batteries, charging, and outboard rigging before valuing cosmetics; that protects the equipment expected on a offshore walkaround-cruiser benchmark.
Start with batteries and charging because modern Grady-Whites can run large electronics suites, pumps, steering systems, stereo, refrigeration, lighting, cabin equipment, and stabilization while the engines are not producing full charging output; the 30-foot offshore cabin walkaround role gives that systems check real ownership value.
Operate hardtop vents, sunroofs, electric shades, sport decks, tables, stabilization systems, windlasses, and side-door hardware where applicable; that matters to the operating reliability of a offshore walkaround-cruiser benchmark. Premium moving equipment should work repeatedly, not once for a demonstration; the 30-foot offshore cabin walkaround mission makes that hardware worth testing carefully.
Inspect aftermarket wiring and accessory installs; that belongs on the systems checklist for a offshore walkaround-cruiser benchmark. A clean Grady-White deserves marine-grade fusing, supported conductors, sealed connections, and service access that has not been blocked by owner modifications; the 30-foot offshore cabin walkaround ownership plan depends on those components working together.
The Marlin 300 should finish the systems inspection with no unexplained alarms, standing water, low-voltage behavior, or pumps that the seller promises to fix after closing; that protects the equipment expected on a offshore walkaround-cruiser benchmark.
The Marlin 300 measures 30’6″ by 10’7″ and weighs about 8,221 lb without engines; that infrastructure has to support a offshore walkaround-cruiser benchmark. That combination defines whether the model is realistically trailer-first, lift-first, or marina-first; the 30-foot offshore cabin walkaround mission makes that storage detail more important.
Anything wider than 8 feet 6 inches deserves a road-transport check before purchase; that belongs in the home-base plan for a offshore walkaround-cruiser benchmark. Large Canyon, Freedom, Express, and CE models may be technically trailerable yet economically better treated as marina boats; the 30-foot offshore cabin walkaround footprint makes that an ownership cost rather than an afterthought.
A lift calculation should include engines, 282 gal of possible fuel, batteries, freshwater, gear, hardtop equipment, and anything normally left aboard; that should be settled before choosing where a offshore walkaround-cruiser benchmark will live. Published hull weight is not the loaded lift number; the 30-foot offshore cabin walkaround use case makes that transport detail worth pricing early.
Storage cost belongs beside the payment estimate; that infrastructure has to support a offshore walkaround-cruiser benchmark. A larger slip, stronger lift, or specialized transport plan can change the monthly ownership picture more than a small financing-rate difference; the 30-foot offshore cabin walkaround mission makes that storage detail more important.
Grady-White values move with model year, Yamaha package, electronics, hardtop equipment, condition, and regional demand; the 30-foot offshore cabin walkaround role makes that a real valuation point.
The engine package is the first price adjustment; that matters in a fair-market comparison for a offshore walkaround-cruiser benchmark. Hours, service history, engine count, Helm Master equipment, propeller condition, and remaining warranty can create a large spread between boats that share the same hull badge; the 30-foot offshore cabin walkaround mission should influence how that option is priced.
Next value the hardware that makes the Marlin 300 a legacy offshore walkaround benchmark with true cruising cabin. 30-foot seav² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity should be functional and documented before it earns a premium.
Cruising equipment needs the same discipline; that belongs in the asking-price analysis for a offshore walkaround-cruiser benchmark. Heads, generators, shore power, refrigeration, air conditioning, cabin upholstery, sport decks, stabilization, and hardtop mechanisms should be priced around present condition; the 30-foot offshore cabin walkaround market rewards documented condition in that area.
Illustration only and not an offer of credit.
Leave room for Yamaha service, fuel, insurance, storage, electronics, and the model-specific systems that make the Marlin 300 useful; the 30-foot offshore cabin walkaround equipment belongs in the full ownership budget.
Illustration only and not an offer of credit. Your actual rate and term depend on credit profile, vessel age, loan amount and ownership structure.
The first cross-shop is Adventure 218 or Express 340. The question is not which boat looks more impressive; it is which hull, beam, power level, and deck workflow fit the owner’s actual water; that is the key distinction in the offshore walkaround-cruiser benchmark cross-shop.
The Marlin 300 makes the stronger case when 30-foot SeaV² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity is central to the mission. If that advantage is rarely used, the sibling may deliver the same Grady-White ride with less fuel, beam, storage cost, or systems burden; the 30-foot offshore cabin walkaround mission should decide that sibling comparison.
A legacy offshore walkaround benchmark with true cruising cabin buyer should compare the exact engine package, not only maximum horsepower. The installed Yamaha configuration changes performance, fuel, service, insurance, and resale; that matters when the shortlist includes a offshore walkaround-cruiser benchmark.
The right model should still look right after payment, insurance, fuel, storage, and annual service are all placed on the same ownership worksheet; the 30-foot offshore cabin walkaround should win or lose the comparison on that point.
Start with the hull identification and exact model year; that is a due-diligence item on a offshore walkaround-cruiser benchmark. Grady-White continuously updates equipment, engine packages, electronics, and options, so a current specification should not be applied blindly to an older boat; the 30-foot offshore cabin walkaround role makes that check worth completing before closing.
Verify the core numbers for the boat being inspected: about 30’6″ of centerline length, 10’7″ beam, 23 in hull draft, 700 HP maximum horsepower, 282 gal standard fuel capacity, and 8,221 lb without engines for the current reference; that protects the value of a offshore walkaround-cruiser benchmark.
Review every Yamaha engine separately. Ask for hours, annual-service records, water-pump history, lower-unit work, steering service, warranty status, and evidence of regular flushing when the boat has lived in saltwater; the 30-foot offshore cabin walkaround purchase should not move forward until that is clear.
Test the systems that define this legacy offshore walkaround benchmark with true cruising cabin. 30-foot seav² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity should work under normal load and should not depend on a seller promising a repair after closing.
Inspect fishing systems wet, not dry; that belongs on the pre-purchase checklist for a offshore walkaround-cruiser benchmark. Livewells, washdowns, drains, freezer boxes, pumps, and cockpit plumbing can appear perfect until water is moving; the 30-foot offshore cabin walkaround mission makes that a practical closing condition.
Quote insurance and storage before closing; that is a due-diligence item on a offshore walkaround-cruiser benchmark. The jump from one Grady-White size to the next can change those costs sharply even when the purchase prices look close; the 30-foot offshore cabin walkaround role makes that check worth completing before closing.
Finally, compare Adventure 218 or Express 340. The Marlin 300 should remain the better answer after power, beam, systems, storage, and daily use are understood; that protects the value of a offshore walkaround-cruiser benchmark.
If it does, start your application with the exact details so the financing conversation reflects the real transaction; the 30-foot offshore cabin walkaround purchase should not move forward until that is clear.
A final Marlin 300 dockside check should focus on how the legacy offshore walkaround benchmark with true cruising cabin layout behaves with the family’s normal gear aboard. Coolers, tackle, fenders, bags, safety equipment, and passengers should still leave clear access to the helm, boarding points, and working cockpit; that belongs on the pre-purchase checklist for a offshore walkaround-cruiser benchmark.
Long-term value on the Marlin 300 also depends on documentation; the 30-foot offshore cabin walkaround mission makes that a practical closing condition. Yamaha service records, electronics invoices, pump replacements, hardtop or cabin repairs, and storage history help a future buyer distinguish a carefully maintained Grady-White from one that merely presents well in photographs; that is a due-diligence item on a offshore walkaround-cruiser benchmark.
Start your application with the actual Marlin 300 details with model year, Yamaha engine package, engine hours where available, seller type, major options, and asking price; that keeps financing aligned with the offshore walkaround-cruiser benchmark use case.
The Marlin 300 is aimed at offshore anglers and cruising families who want the proven 30-foot walkaround formula with real cabin volume, hardtop protection, and 700 horsepower. Its most important differentiator is 30-foot SeaV² heritage, 290-quart fish box, protected helm, full cabin, and 282-gallon fuel capacity.
The current factory reference is about 30’6″ of centerline length with a 10’7″ beam; that answer should be read through the offshore walkaround-cruiser benchmark use case. Measure the full engine-on and trailer-on footprint before choosing storage; the 30-foot offshore cabin walkaround mission is why that answer matters.
Grady-White publishes 700 HP as the maximum for the current Marlin 300; that is especially relevant to a offshore walkaround-cruiser benchmark owner. The exact Yamaha package and capacity labels on the boat remain authoritative; the 30-foot offshore cabin walkaround role gives that answer useful context.
Standard fuel capacity is 282 gal. Actual usable range depends on the installed engines, load, trim, bottom condition, weather, and cruising speed; that point should be interpreted in the context of a offshore walkaround-cruiser benchmark.
The current reference is approximately 8,221 lb without engines; the 30-foot offshore cabin walkaround buying case depends partly on that answer. A loaded boat with engines, fuel, batteries, water, gear, and options will be substantially heavier; that answer should be read through the offshore walkaround-cruiser benchmark use case.
Start with hull and transom condition, then Yamaha engine history, steering, electronics, bilge, livewell or plumbing systems, hardtop hardware, and the feature set that makes this legacy offshore walkaround benchmark with true cruising cabin.
Start with Adventure 218 or Express 340. Compare mission, beam, engine count, fuel, storage infrastructure, and the systems the family will actually use; the 30-foot offshore cabin walkaround mission is why that answer matters.
Potentially. Model year, value, condition, seller type, purchase amount, and borrower qualifications matter; that is especially relevant to a offshore walkaround-cruiser benchmark owner. Start your application with the actual details so the loan discussion reflects the boat being purchased; the 30-foot offshore cabin walkaround role gives that answer useful context.
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