About us

Welcome to Bosun’s Marine Maryland

Bosun’s Marine MD, formerly Grande Yachts International is a full-service boat dealership representing the finest premium brands in today’s market. We are proud to be a part of the OneWater Team of over 65 dealerships located throughout the United States.  Bosun’s Marine, in business for over 35 years, is well established with locations in the Boston and Cape Cod MA region and now also Maryland. Whether searching for a new or used boat, looking to sell your own boat or have a service performed our professionally trained staff is here to assist you all the way.  Our goal is to provide you with an outstanding experience with our dealership.  We look forward to serving you.


Our state of the art facility is located right on route 50 in Grasonville, MD and includes two giant indoor showrooms, docking with water access, a 3 acre lot for boat storage and a 15,000 sq. ft. shop.  Our team of highly qualified technicians are factory trained and authorized to service Yamaha, Mercury, Volvo, Panda generators and Garmin electronics.   We also provide over the road service to our customers.


Bosun’s Marine MD is a dealer for Cobalt, Chris-Craft, EdgeWater, Pursuit, World Cat and Jupiter boats, the best in its class.  Models are available from 19 to 42 ft.  Our showrooms are open 7 days a week to our guests.  If you would like a private tour or even a virtual tour our sales team will be more than happy to accommodate you.   Our in-house Business Office will provide you with exceptional financing options and make your boat purchase run smoothly.


With our network of over 65 locations we have access to hundreds of pre-owned boats for sale with a wide range of makes and models to select from.  Sport boats, cruisers, sport fisherman, center consoles and yachts are arriving daily.  Click here to search our current list of boats for sale.  We can also sell your boat for you.  Our expert sales team can give you a free market analysis of your current boat and assist you with a quick sale.

Welcome to the family!