M&M Marine will be showcasing our New & Used Inventory at the New England Boat Show

Visit us at Booth 208 for Pre-Owned Deals

Visit us at Booth A76 to see what Key West Boats has to Offer

Visit us at Booth H12 to climb on Defiance Boats Newest Models

Boston Convention and Exhibition Center

415 Summer Street, Boston, MA

January 8-12, 2025

About Us

Massachusetts premiere boat dealer for Key West, Defiance, and MayCraft boats! M&M Marine is a full-service boat dealer conveniently located between Greater Boston and Cape Cod in Plymouth, MA. We are one of the largest Key West dealers in the United States and are very excited to also bring both Defiance and MayCraft Boats to MA! We also provide boat service, maintenance, and repairs by experienced, trained technicians.

We stock a wide variety of lengths and models across our brands and can also custom order a boat if so desired. We also carry a great selection of pre-owned boats for sale.

Conveniently located just off Route 3 in Cedarville, Plymouth, stop in today or email us for more information on helping you find the perfect boat for you and your family to begin creating memories that will truly last a lifetime!