2026 Grady-White Marlin 300
Price on request
Boat in Niantic, CT 06357 US
Marlin 300
2 Engines (Yamaha, Yamaha)
30 feet
Gas
Fiberglass/Reinforced
Custom Order Opportunity: 2026 Grady-White Marlin 300
The Definitive Walkaround | Offshore Legend | All-Weather Versatility
The Grady-White Marlin 300 is the boat that defined the walkaround cabin category and remains the gold standard for versatility in the Northeast. Built on the legendary SeaV2® hull, the Marlin 300 is a true "cross-over" vessel-providing the fishability of a large center console with the dry, secure cabin of an offshore cruiser. Whether you are running to the Race in a heavy chop or spending a long weekend at Block Island, the Marlin 300 delivers a level of safety and comfort that has made it a favorite on the Sound for over 30 years.
While we do not have this unit in our current stock, we are now accepting custom orders. Build a Marlin 300 that is perfectly dialed in for your lifestyle in local waters.
The Foundation: Stability & Proven Performance
SeaV2® Hull Excellence: Grady's signature variable-degree deadrise hull ensures a smooth, dry entry and incredible tracking, allowing you to stay on the water when others are heading for the dock.
Massive 10' 7" Beam: The Marlin's wide beam offers a significantly larger cockpit and cabin than most 30-foot boats, providing unmatched stability and room for the whole family.
Powerful Twin Yamaha Outboards: Command the water with Twin Yamaha F300s. This configuration offers the perfect power-to-weight ratio for the Marlin, delivering exceptional fuel efficiency and the torque needed for heavy-weather runs.
Tailored Tech & Navigation
The Marlin 300 features a protected, ergonomically designed helm with superior visibility. Through Boats Inc., we help you rig your build with the latest technology:
The Glass Cockpit: The dash is designed to accommodate Twin Garmin 12-inch 8600-series touchscreens, integrating your CHIRP sonar, high-definition radar, and engine data into one seamless view.
Precision Maneuverability: Standard Yamaha Helm Master EX® with Full Maneuverability makes docking at our Niantic waterfront or handling a stiff cross-current at the docks effortless.
Seakeeper® Stabilized: Virtually eliminate boat roll at the dock or while drifting the Race by adding an optional Seakeeper® 2 gyroscopic stabilizer, ensuring maximum comfort for all your guests.
The Ultimate Cabin & Comfort
Luxury Accommodations: The Marlin 300 features a beautifully appointed cabin with a full galley, including a microwave, fridge, and stainless steel sink, plus a teak-and-holly sole.
Sleeps Four Comfortably: Includes a large forward V-berth that converts into a dining area and a spacious aft double berth, making it a true overnight-capable vessel for weekend getaways.
Full-Featured Head: Features an enclosed head area with a shower and a porcelain head with a holding tank, providing all the comforts of home while you're on the Sound.
The Build Process
Ordering your Grady-White through Boats Inc. means you get expert guidance through every step of the rigging process. We ensure your boat is optimized for local Connecticut waters-from selecting the right options for your needs to choosing your perfect hull color and layout.
Secure your production slot for the upcoming season.
Select every luxury finish and offshore electronic detail.
No compromises-just the perfect Grady-White Marlin.
Why Choose Boats Inc.?
When you build a boat with us, you are partnering with a legacy of excellence. Boats Inc. has been serving the boating community for over 60 years. We are honored to have been repeatedly voted #1 for Best in Customer Satisfaction, a testament to our commitment to our customers long after the sale is complete.
Start Your Build Today
The Grady-White Marlin 300 is the definitive choice for the boater who values security, comfort, and performance. Don't wait for a stock unit-design the legendary walkaround you've always wanted.
Call or visit Boats Inc. today to sit down with our sales team and start building your custom Grady-White Marlin 300!
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.
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Contact Boats Inc
133 Main Street, Niantic, CT, 06357



































