Smith Yacht Sales is proud to present our brokerage office at Great Bay Marine in Newington, New Hampshire. Great Bay Marine is a family-owned and operated marina and has been in operation for over 60 years. Located along the New Hampshire Seacoast, Great Bay Marine is located in Newington, NH and services greater Portsmouth and surrounding areas. Great Bay Marina is a year-round, fully professional service and boating facility which now includes yacht brokerage.