2026 Grady-White Marlin 300 300 Yamaha Four-Stroke Twin

30' WALKAROUND CABIN
Marlin 300
Legendary performance and comfort in a proven offshore classic.

The first model built on Grady-White’s SeaV²® hull, the Marlin 300 is a true offshore legend. Continuously refined for over three decades, it pairs proven performance with luxurious comfort and exceptional detail. From serious offshore fishing to family cruising, the Marlin 300 defines the benchmark for 30-foot walkaround boats.

Exceptional is Standard
Discover the features that put every Grady-White in a class of its own.

For generations, Grady-White has set the standard for quality, reliability, performance, and satisfaction.

Grady-White’s SeaV2® hull delivers unmatched ride quality—engineered for superior comfort, control, and offshore confidence.

Grady-White boats are crafted with precision and pride, setting the standard for marine quality, durability, and performance.

Features may include:

Safety

• 2 automatic bilge pumps (total 2600 GPH) (9842 LPH)
• Basic flotation
• Bow rail - 316 grade stainless steel
• Cockpit toe rails
• Composite stringer system & transom - water impervious
• Nonskid fiberglass liner
• Nonskid recessed walkaround
• Self-bailing cockpit w/cockpit drains (4)
• Stainless steel through-hull fittings

Cabin

• Accessory outlet - 5V duplex USB port
• Berth - aft double berth
• Berth - forward vee berth
• Carbon monoxide detector
• Door - lockable w/screen & companionway hatch
• Forward hatch - low profile acrylic hatch w/screen & shade
• Galley - port galley w/sink, light & Corian® cutting board
• Head - enclosed head area w/sink, shower, lamp & VacuFlush® marine head w/freshwater supply, 10-gallon (38 l) holding tank, overboard discharge & deck pump out
• Lighting - dome (2)
• Lighting - reading (3)
• Microwave oven
• Mirror
• Refrigerator - stainless steel
• Rod storage - aft berth horizontal (4)
• Rod storage - folding cabin rack (4)
• Rod storage - forward horizontal (6)
• Stereo system w/waterproof touch screen display, AM/FM tuner, Wi-Fi & Bluetooth® connectivity & remote unit; speakers w/LED lights - helm (2), cabin (2), cockpit (2)
• Storage - galley cabinets & counter
• Storage - under berth compartments
• Storage nets
• Stove - electric glass top
• Table - cherry
• Teak & holly sole
• Water heater - 6-gallon (22.7 l), 120V
• Water tank - 32-gallon (121.1 l) freshwater
• Windows - tinted frameless acrylic w/shade

Cockpit & Deck

• 100% hand laid SeaV² hull & deck
• Accessory outlet - 5V duplex USB port
• Accessory outlet - 12V
• Anchor windlass w/rode, line, and remote switches at helm & windlass
• Batteries (4) w/battery select switches (one per engine) & charger system (1)
• Bow pulpit w/roller
• Cleats
• Cockpit bolsters
• Cockpit freshwater shower w/hot & cold mixer
• Cockpit lights - blue LED
• Cockpit side door - port w/boarding ladder
• Companion grab rail
• Deck hardware - 316 grade stainless steel through-bolted
• Dockside power w/galvanic isolator
• Drink holders - stainless steel (9)
• Engine flush system w/hose attachment aft (one per engine)
• Factory engine pre-rigging
• Fighting chair reinforcement
• Fish box - 290-qt. (274.4 l) aft insulated fish box w/light & ob drain
• Flush mount electronics area
• Footrests - helm & companion (fold down)
• Freshwater level indicator
• Fuel capacity - 282 gallons (141-gallon tank, 141-gallon tank) (1067 l)
• Hardtop w/painted aluminum frame, radio box, storage nets, spreader lights, hardtop mounted rod holders (6), side mounted rod holders (4), outrigger plates & drop, front & side curtains (ivory)
• Hydraulic trim tabs w/indicator & retractor
• Integrated outboard mounting system w/swim platform & ladder
• International lighting
• Livewell - 32-gallon (121.1 l) port insulated raw water livewell w/light, full column distribution inlet & ob drain (1100 GPH pump) (4164 LPH)
• Rigging station - freshwater sink, insulated bait box w/ob drain & lockable drawers
• Rod holders - cockpit (4)
• Rod storage racks - horizontal (3)
• Rubrail - high density PVC w/stainless steel insert
• Seating - Command Elite helm & companion chairs (2) horizontally & vertically adjustable w/deluxe cushioning & flip-up bolster
• Seating - foldaway aft bench seat w/cushion
• Seating - foredeck cushions
• Seating - port livewell cushion
• Seating - starboard rigging station cushion
• Steering - Helm Master® EX w/Integrated Digital Electric Steering (does not include joystick)
• Steering wheel - 316 grade stainless steel w/knob
• Stern eyes - 316 grade stainless steel
• Storage - aft deck lift out box
• Storage - forward anchor locker w/rode storage
• Storage - lockable storage under helm & companion seats
• Storage - under step compartment
• Transducer mounting flats
• Transom door - fiberglass
• Washdown - pressurized raw water w/hose
• Water tank - 32-gallon (121.1 l)
• Windshield - tempered glass w/side vents
• Windshield wipers w/starboard washer

Optional Features

• Air conditioning - 8000 BTU in cabin
• Bow thruster
• CE certification package (European Conformity)
• Generator - 5 kW diesel, 12-gallon (45.4 l) fuel capacity
• Hardtop color - underside of fiberglass hardtop (requires matching gelcoat hull color option)
• Hull color - Celestial Blue, Coastal Fog, Ocean Mist, or Sage Gray gelcoat
• International AC electrical conversion - 220V (50Hz)
• Lighting - underwater blue LED (3)
• Outrigger kit - 18-ft. (5.5 m) crank hardtop mounted stainless steel outriggers w/carbon fiber poles
• Steering - Helm Master® EX w/Full Maneuverability & Yamaha Siren Marine Connected Boat® Monitoring System
• TV - 19" LED flat screen w/HDMI inlet

Engine Options

• 300 Yamaha Four-Stroke TWIN
• 350 Yamaha Four-Stroke TWIN