- Stock #417059 - Big, capable Grady-White 300 Marlin with Yamaha 250s. Ready for offshore adventure or cruising. Call today! Legendary Grady-White 300 Marlin ready for a new home. The Grady-White 300 Marlin - the one everyone wants and the one everyone else shoots for. This is THE boat if you want a serious offshore boat that is comfortable no matter what the day brings and is just as comfortable when the night drops down. This icon of a boat is one of the gold standards for walk-aroundS. Proven over decades, this hull is the peak of functionally and design. Lots of room to move around, ... read more