Call: 603-436-5299
61 Beane Lane, Newington, NH 03801
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    Great Bay Marine, Our 61st Year 1956 – 2017!


    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.

    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!”

    We are Proud to announce that SMITH YACHT SALES will be joining us in our upstairs office.


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

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    CLICK HERE TO SUBMIT A SERVICE REQUEST OR TO REQUEST A PART!


    Great Bay Marine Inc.

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    Leaving For a Few Days? Help us out and complete our Member departure form

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    Contact us:
    Phone:(603)436-5299
    Fax: (603) 436-9834
    Email: cs@greatbaymarine.com