GBM Home Page

  • Slips & Moorings
  • Marina Ship Store
  • Service
  • Boat Engines for Sale
  • Boat Storage
  • Smith Yacht Sales
  • Hurricane Prep Files

Slips & Moorings

Slips & Moorings

  • 128 Slips accommodating 13′ to 70′ LOA
  • Available 30A & 50A Power and Fresh Water
  • Free High Speed Wireless
  • 84 Moorings, Dedicated Dinghy Dock
  • 4 Moorings at Hilton Park for Tall Rig Sailboats
  • Transient Slip & Mooring Availability

For Slip & Mooring inquiries please email: 

We have had a wait list for the better part of the last 5 years. To be added to the list please reach out to 

roslynn@greatbaymarine.com or sean@greatbaymarine.com

Slip and Mooring Diagrams

Marina Ship Store

SHIP STORE

week days 8:00a-4:30p*
saturday & Sunday closed for off season

 

Geared towards the Do-it-Yourself Boater, our store carries paints, cleaning supplies, and hardware.

PARTS DEPARTMENT

Let our knowledgeable Parts Department find what you’re looking for. Great Bay Marine keeps common OEM parts on hand, we get deliveries daily and special order parts typically arrive in one to three days.

We service and can get most parts for the following brands:

  • Universal
  • Honda
  • Tohatsu
  • Mercruiser
  • Beta Marine
  • Volvo
  • Yanmar
  • Westerbeke

Learn more

Service

SERVICE

Need something fixed? Boat need to be waxed and painted? Need winterization work? Maybe a repower?  Don’t worry we have you covered! With a year round full service team we can help !

OPEN week days 8-4:30*

SERVICES OFFERED

  • All Engine & Onboard Systems Serviced
  • OEM Trained Service Centers for Cummins Marine, Honda Marine, Tohatsu, Westerbeke / Universal, Beta Marine, Volvo Penta, Mercruiser, & Yanmar Diesel
  • ABYC Certified Electrical / Electronics Service & Installation
  • Paint Services (Bottom paint, AWLGrip, Bright work etc.)
  • Complete Winterizing & Decommissioning
  • Spring Commissioning
  • On-Site Fuel Polishing & Cleaning
  • Fiberglass Services

To learn more about what we offer for boat services and maintenance follow the link below!

Learn more

Boat Engines for Sale

SALES

Taking orders for TUG Inflatable models!!!

TUG Aluminum Hull Inflatables Light Aluminum Hulls Many with Bow Lockers Limited Supply Last Season Sold Out! Best Prices Now!   603.436.5299 / VHF 68 Newington, NH  tom.brown@greatbaymarine.com

ENGINES AND REPOWERS

Great Bay Marine offers a variety of engine options, from outboard sales to repowers we have you covered. GBM is also proud to announce that we have received the Honda Marine “Premier” Dealer award! Please check out our new connected Honda marine dealer site below.

We carry :

  • Cummins
  • Honda Marine
  • Tohatsu
  • Beta Marine
  • Universal Marine
  • Yanmar
  • Volvo penta
  • Westerbeke

Learn more

Boat Storage

STORAGE OPTIONS

Great Bay Marine offers a variety of storage packages and options.

Ramp & Storage Season Passes

Our launch ramp includes:

  • Available During All Tides
  • 120 Floating Dock
  • Fresh Water Rinse Available
  • 24 Hour Accessibility
  • For Boats up to 24 (LOA)
  • Daily Use Passes under 25′ LOA Non-Commercial – $40 can be located to the right of our ship store door! drop in our drop box like a hiking pass!
  • Daily Use Passes 25′ LOA and over – $50
  • Daily Use Pass Commercial – $75

Ramp & storage Boats <25′:$1095.00 

Ramp only season pass : $450.00 

Trailer Storage Only: $225.00

Contact Roslynn  FOR MORE INFOMATION ON AVAILABILITY

 

SUMMER STORAGE

Season, July 1- August 31

  • Rates are calculated on length over all
  • All boats will be measured
  • All payments due upon arrival of boat
  • Call for rates on multi-hulled boats

WINTER STORAGE

Season, Sept. 1 – June 30

  • Rates are calculated on length over all
  • All boats will be measured
  • Half of your payment is required to secure your spot
  • Full payment due upon haul out
  • Call for rates on multi-hulled boats

Click here to learn more about our indoor storage facilities and our outside storage accommodations.

Learn more

Smith Yacht Sales

ONSITE BROKER

SMITH YACHT SALES

Meet Jon Tregea, our on site yacht broker! If you are at Great Bay Marine and in need of a yacht broker, feel free to drop in on Jon at any time! His office has a great view of Great Bay Marine and he can see all the action! Jon is a super friendly, approachable guy .

For more information on Smith Yacht Sale’s Brokerage Services, follow this link to learn more.

Learn more

Hurricane Prep Files

HURRICANE PREP FILES

HURRICANE PREP FILES: IN CASE OF HURRICANE ACCESS THESE FILES!!!!!

Events & INFO

2025 Calendar of Events

5/1 Thursday Season Starts, Docks & Moorings Open

5/16 Friday GBM Improved Ramp Opens For The Season

5/24 Saturday Memorial Day “Kickoff The Season” Party