Marlin 300
30' WALKAROUND CABIN
The first model Grady-White built on the exclusive SeaV²® hull, the Marlin 300, offers amazing performance and true offshore saltwater fishing boat capability. Since that first design over three decades ago, the Marlin 300, has been refined through customer input and Grady’s acclaimed exceptional attention to detail. From the high windshield with ventilated tempered glass to the plush seating and luxurious cabin, this is a much-loved, legendary 30-foot walkaround fishing boat with abundant family-friendly details.
Photo Gallery
Grady-White Marlin 300 30-foot walkaround cabin boat fishing
Grady-White Marlin 300 30-foot walkaround cabin boat cruising
Grady-White Marlin 300 30-foot walkaround cabin boat running
Grady-White Marlin 300 30-foot walkaround cabin boat cruising by lighthouse
Grady-White Marlin 300 30-foot walkaround cabin boat interior with galley
Grady-White Marlin 300 30-foot walkaround cabin boat interior forward berth
Grady-White Marlin 300 30-foot walkaround cabin boat interior galley and storage
Grady-White Marlin 300 30-foot walkaround cabin boat interior galley storage and stereo system
Grady-White Marlin 300 30-foot walkaround cabin boat interior head
Grady-White Marlin 300 30-foot walkaround cabin boat interior head door with mirror
Grady-White Marlin 300 30-foot walkaround cabin boat refrigerator
Grady-White Marlin 300 30-foot walkaround cabin boat aft berth
Grady-White Marlin 300 30-foot walkaround cabin boat command elite chairs
Grady-White Marlin 300 30-foot walkaround cabin boat cockpit forward
Grady-White Marlin 300 30-foot walkaround cabin boat cockpit
Grady-White Marlin 300 30-foot walkaround cabin boat aft bench seat
Grady-White Marlin 300 30-foot walkaround cabin boat painted hardtop frame
Grady-White Marlin 300 30-foot walkaround cabin boat livewell
Grady-White Marlin 300 30-foot walkaround cabin boat rigging station
Grady-White Marlin 300 30-foot walkaround cabin boat aft cockpit boxes and battery select switch
Marlin 300 Features & Options
Select camera icons where available to view feature photos
Denotes feature as trademarked, exclusive, patented, or patent pending
STANDARD FEATURES
2 automatic bilge pumps (total 2600 GPH) (9842 LPH)
Basic flotation
Bow rail - 316 grade stainless steel
Captain Grady® - digital boat systems & operations guide for iPad & iPhone
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
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 - forward horizontal (6)
Stereo system w/AM/FM tuner, MP3 auxiliary audio connections/amplifier, Bluetooth®, remote unit & fold down storage; speakers w/LED lights - cabin (2), cockpit (2), helm (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
100% hand laid SeaV² hull & deck
Accessory outlet - 12V
Accessory outlet - 5V duplex USB port
Anchor windlass w/remote switches at helm & windlass
Batteries (4) w/battery select switches (2) & charger system (1)
Bow pulpit w/roller
Cleats
Cockpit bolsters
Cockpit freshwater shower (recessed)
Cockpit lights - blue LED
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 (adjustable)
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, side mounted rod holders (4), outrigger plates & drop, front & side curtains (black or 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 (4)
Rod storage racks - horizontal (6)
Rubrail - high density PVC w/stainless steel insert
Seating - Deluxe II vertically & horizontally adjustable helm & companion chairs
Seating - foldaway aft bench seat w/cushion
Seating - foredeck cushions
Seating - port livewell cushion
Seating - starboard rigging station cushion
Steering - Helm Master EX® Digital Electric Steering
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 - freshwater
Washdown - pressurized raw water w/hose
Water tank - 32-gallon (121.1 l)
Windshield - ventilated tempered glass
Windshield wipers w/starboard washer
OPTIONAL FEATURES
Air conditioning - 8000 BTU in cabin
Bow thruster
CE certification package (European Conformity)
Cockpit freshwater shower w/hot & cold mixer
Engine paint - Yamaha factory-painted engine(s), pearlescent white
Generator - 5kW 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 Blue, Ocean Mist Blue, Sand, Sea Glass or Seaport Blue gelcoat; Cape Gray or Harbor Blue paint
International AC electrical conversion - 220V (50Hz)
Lighting - underwater blue LED (3)
Outrigger kit - 15-ft. (4.6 m) crank hardtop mounted
Outrigger kit - 15-ft. (4.6 m) radial hardtop mounted
Painted hardtop top mounted rod holders (6)
Rod storage - folding cabin rack (4)
Seating - companion bench seat (replaces Deluxe II companion chair)
Seating - Command Elite contoured helm chair (1) horizontally & vertically adjustable w/deluxe cushioning & flip-up bolster
Seating - Command Elite contoured helm chair & companion chair (2) horizontally & vertically adjustable w/deluxe cushioning & flip-up bolster
Steering - Helm Master EX® w/Full Maneuverability
TV - 19" LED flat screen w/DVD player
Marlin 300 Performance Data
300 Yamaha Four-Stroke
Twin
Top Speed: 49.5 MPH @ 5800 RPM
Optimum Cruise: 29.7 MPH @ 3800 RPM
GPH at Optimum Cruise: 21.5
MPG at Optimum Cruise: 1.38
GRAY
Standard
WHITE
Optional
300 Yamaha Four-Stroke
Twin
Engine Size
4.2L
Test Date
9/22/2010
Prop Size
15 1/2 X 17 SWS II SDS
Weight as Tested
11697 lb. (including persons, fuel, water, gear, engines & accessories)
Hardtop
Yes
Bow Pulpit
Yes
Bottom Paint
No
Optimum Cruise
29.7 MPH @ 3800 RPM
| RPM | MPH | GPH | MPG |
| 1000 | 6.0 | 2.6 | 2.31 |
| 1500 | 7.9 | 4.1 | 1.94 |
| 2000 | 8.8 | 6.7 | 1.31 |
| 2500 | 9.7 | 10.0 | 0.97 |
| 3000 | 14.6 | 12.8 | 1.14 |
| 3500 | 26.4 | 18.0 | 1.47 |
| 3800 | 29.7 | 21.5 | 1.38 |
| 4000 | 31.5 | 23.9 | 1.32 |
| 4500 | 36.6 | 30.7 | 1.19 |
| 5000 | 42.0 | 40.4 | 1.04 |
| 5500 | 46.4 | 50.7 | 0.92 |
| 5800 | 49.5 | 52.3 | 0.95 |
Back To Engines
PERFORMANCE DISCLAIMERS
The following variables can affect performance: wind, current, sea conditions, speed, engine performance, transducer, trolling time, engine trim,
bottom paint, trim tabs, curtains, tops, gear placement and prop size/condition/type. This report should be used only as a general reference guide.
Prop size, pitch and prop features listed in this performance report reflect the available props factory installed on new boats from Grady-White at
this time. Props cited in the report may be an updated version(s) of the prop(s) used at the time of the test.
300 Yamaha Four-Stroke
Twin
Engine Size
4.2L
Test Date
9/22/2010
Prop Size
15 1/2 X 17 SWS II SDS
Weight as Tested
11697 lb. (including persons, fuel, water, gear, engines & accessories)
Hardtop
Yes
Bow Pulpit
Yes
Bottom Paint
No
Optimum Cruise
29.7 MPH @ 3800 RPM
| RPM | MPH | GPH | MPG |
| 1000 | 6.0 | 2.6 | 2.31 |
| 1500 | 7.9 | 4.1 | 1.94 |
| 2000 | 8.8 | 6.7 | 1.31 |
| 2500 | 9.7 | 10.0 | 0.97 |
| 3000 | 14.6 | 12.8 | 1.14 |
| 3500 | 26.4 | 18.0 | 1.47 |
| 3800 | 29.7 | 21.5 | 1.38 |
| 4000 | 31.5 | 23.9 | 1.32 |
| 4500 | 36.6 | 30.7 | 1.19 |
| 5000 | 42.0 | 40.4 | 1.04 |
| 5500 | 46.4 | 50.7 | 0.92 |
| 5800 | 49.5 | 52.3 | 0.95 |
Back To Engines
PERFORMANCE DISCLAIMERS
The following variables can affect performance: wind, current, sea conditions, speed, engine performance, transducer, trolling time, engine trim,
bottom paint, trim tabs, curtains, tops, gear placement and prop size/condition/type. This report should be used only as a general reference guide.
Prop size, pitch and prop features listed in this performance report reflect the available props factory installed on new boats from Grady-White at
this time. Props cited in the report may be an updated version(s) of the prop(s) used at the time of the test.
Marlin 300 Overhead
Select the hotspots below to learn more about the Marlin 300 features.
Marlin 300 Virtual Tour
Videos
MY2019 Marlin 300
BoatTEST.com: Marlin 300 Test
300 on the water
300 walkthrough
Customer Reviews
Industry Reviews
Nov-Dec 2019, Pacific Power Boat - "Grady-White Marlin 300 WA"
October 18, 2018, BD Outdoors.com - "Yamaha Helm Master—Do You Want It, Do You Need It?"
2017, BoatTEST.com - "Grady-White Marlin 300 (2017-)"
January 2015, Soundings - "Grady-White 280 Marlin"
June 2007, Motorboating - "Grady-White 300"