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:
- Year-round, full service marina
- Winter storage with easy, year-round access to your boat
- 6 indoor storage & service buildings
- 35 ton Marine Travel Lift
- Complete service, refit & repair
- Outboard & Inboard, Gas & Diesel Engine Sales, Service
- Inflatable Boat Sales
- Fully stocked Ship’s Store and Parts Department
- 128 slips and 72 moorings
- Only an hour’s drive from both Boston and Portland
- Competitive rates in the yard, discount prices in the store
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!”
Great Bay Marine is proud to be the Seacoast’s factory authorized distributor and provider of Service, Sales, and Parts for the following: