Call: 603-436-5299
61 Beane Lane, Newington, NH 03801
  • Drop Us a Line

Great Bay Marine, Celebrating 60 Years 1956 – 2016!

Great Bay Marine Inc.

Welcome to Great Bay Marine

The New Hampshire Seacoast’s only year-round, full-service boating facility – just six miles up the Piscataqua River on 36 acres serving Portsmouth, Newington, and surrounding communities.

At Great Bay Marine you’ll find:   

Great Bay Marine Inc.

 A Long Tradition

Since 1956, the Griffin family has been hosting generations of families looking for quality, reasonably priced, professional marine services. Great Bay Marine’s convenient, sheltered location is ideal for cruising the Great Bay, the Piscataqua River, and beyond to our nearby history filled islands and open sea.

Great Bay Marine is committed to your boating.
“We want you on the water!”

60 years logo

Great Bay Marine is proud to be the Seacoast’s factory authorized distributor and provider of Service, Sales, and Parts for the following:



cummins-logo (1)


yanlogo1 thumbnail


Universal-Logo WESTERBEKE2final11-300x69 Volvo-Penta-logo