Port

Cos Cob Marina

Greenwich, United StatesLong Island Sound
Type
Harbour

Berthing on the Mianus River at Cos Cob, Greenwich, Connecticut, off the western end of Long Island Sound.

Guide

Approach and anchoring

Approach from Long Island Sound by the marked channel into Cos Cob Harbour, picking up the buoys near Hitchcock Rock. The dredged channel carries about 6ft at low water, less where it has silted. A fixed road bridge upstream gives 45ft vertical clearance.

Practical

Berths on pontoons along the Mianus River. Several marinas and a town boatyard lie within the same reach, so fuel, water and repair facilities are close at hand.

Key facts

Type
Harbour
Coordinates
41.03223, -73.59644 (41°1.93'N 73°35.79'W)
Town
Greenwich
Country
United States
Updated
July 7, 2026

Getting there

Cos Cob Marina lies at 41°1.93'N 73°35.79'W, that is 41.03223, -73.59644 in decimal degrees.

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