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Welcome to Great Peconic Bay Marina

Great Peconic Bay Marina (GPBM) is located in the small town of South Jamesport. You can find us by water where the Great Peconic Bay and the Flanders Bay meet, known to many as Hawk's Creek. By land we are a short 7 miles East of the end of the Long Island Expressway. We have been family owned and operated since 1978. We have always taken pride in our service, marina facilities and our effort to make your boating a pleasure. We are a complete full service marina with an informal atmosphere.
Leave our entrance channel and you will be boating in the Great Peconic Bay!

Great Peconic Bay Marina, Inc.
PO Box 326 - Washington Avenue
South Jamesport, NY 11970
Phone: 631-722-3565 Fax: 631-722-3724

L.I.E to Exit 73 (end of Expressway), continue East 7.2 miles on County Road 58 to Washington Avenue.
Make a Right on Washington Avenue, continue 0.8 miles to Marina Entrance.

13 Washington Ave
South Jamesport, NY 11970
Telephone: 631-722-3565
Fax: 631-722-3724