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Grady-White Marlin 300 30′ Walkaround Cabin

Grady-White Marlin 300

Marlin 300

30' Walkaround Cabin

In 1988, the Marlin 280 (today’s Marlin 300) was the first Grady with the exclusive SeaV2® hull, offering amazing performance and true offshore saltwater fishing boat capability. Since that time, through customer input and attention to detail, Grady-White has refined every feature of this signature, much loved 30-foot walkaround cabin boat.


Grady-White Marlin 300 30′ Walkaround Cabin
Beam Amidships 10'7" / 3.23 m
Center Line Length w/o Engine 30'6" / 9.30 m
Bridge Clearance w/ T-Top 9'9" / 2.97 m
Cockpit Depth 29" / 0.74 m
Hull Draft 23" / 0.58 m
Maximum HP 700 / 522 kW
Fuel Capacity - Standard 282 gal. / 1067 l
Weight w/o Engine 8221 lb. / 3729 kg

Performance Data


Available Colors


Classic Grady White (gelcoat)


Celestial Blue
Coastal Fog Blue
Sea Glass
Seaport Blue
Cape Gray
Harbor Blue


MY2017 Marlin 300

300 on the water

300 walkthrough


Marlin 300

Marlin Magic

We purchased a new 2022 Marlin 300 from South Shore Marine. What a great boat for the rough water of Lake Erie. The fishing features coupled with the ability to overnight sold us on the Marlin. Matt our sales person from South Shore has been excellent and professional both before and after the sale, Our experience with both Grady White and South Shore has been great. Grady White builds a top quality boat. Martha and Pascal.

October 11, 2022 -

Marlin 300

A plus experience

It was delivered on time in great condition with no surprises or problems with anything that goes along with a delivery. The follow up showed the staff cared and the dealership values my business.

August 12, 2022 -

Marlin 300

Super Boat

Just purchased the Marlin 300. This is my third Boat purchase. My previous Gradywhite 268 Islander I had for 21 years. This Boat is well built. Love the ride. Fast, Dry and Stable. Great for Fishing and just sitting on it at the dock and having lunch or Dinner. Very well designed Boat. I highly recommend this Boat.

June 22, 2022 -