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Boating and Marinas

Greenwich has some of the best boating waters on Long Island Sound. The Town Boating Programs is in place to provide our residents with affordable marina facilities to enable them to take advantage of the islands, the beaches, and the recreational pleasures of boating.

There are 4 marinas available to Town of Greenwich residents, open from April 15th through November 15th each year. Winter storage is available at all marinas from September 1st - June 1st.

We provide a host of services, which meet the active boater’s need for boats up to 36’ in length, Storage of kayaks and canoes, Winter Storage , Summer Storage including: moorings**, slips, and dry sailing. Please be advised that some services have wait lists.

What do I need to use a Marina?
You must obtain a Town permit at the Town Hall Department of Parks and Recreation Marina Desk. Please bring proof of Greenwich Residency. A CT State Registration is required for all power boats and sail boats greater than 19 ft (proof of insurance is also required, with minimum liability coverage of $300,000). Proof of ownership is required for non-powered boats and sail boats under 19 ft.

Launching ramps are available at all Marinas:

Byram Marina
The Byram Marina has approximately 200 slips for vessels up to 23’ overall length with beam widths up to 9’. There is also limited rack storage for kayaks and canoes. The marina has outwater mooring space for approximately 100 vessels up to 36’ overall length and drafts up to 7’. The Byram Dockmaster’s office can be reached at (203) 532-9019. Located in Byram Park just south of exit 2 of I-95 on Ritch Avenue

Grass Island Marina
The Grass Island Marina has approximately 150 slips that can accommodate vessels up to 23’ overall length, with beam widths of up to 9’. In addition, there are a limited number of slips that accommodate boats 36’ in length. There is also limited rack storage for kayaks and canoes. The marina has out-water mooring space for approximately 75 vessels up to 36’overall length and drafts up to 5’. The Grass Island Dockmaster’s office can be reached at (203) 618-9695. Located off Shore Road in central Greenwich just south of I-95

Greenwich Point Marina
The Greenwich Point Marina has outwater mooring space for approximately 250 vessels up to 36’ overall length and up to 7’ drafts. We also have rack storage for about 250 canoes, kayaks, and other small vessels. The Greenwich Point Dockmaster’s office can be reached at (203) 698-7792. Located at Greenwich Point Park in Old Greenwich

Cos Cob Marina
The Cos Cob Marina has approximately 200 slips for vessels up to 23’ overall length with beam widths up to 9’. There is also limited rack storage for kayaks and canoes. The Dockmaster’s office can be reached at (203) 618-9698. Located on 94 Strickland Road just south of the I-95 overpass

**A mooring requires 2 permits a use facilities permit issued by the Department of Parks and Recreation and a mooring permit issued by the Harbormaster, William John "Ian" Macmillan (imacmillan@mindspring.com), 203-536-4578). If you do not use any Town of Greenwich marine facilities for access, storage, or hauling of your vessel, then you do not need a facilities permit from the Department of Parks and Recreation, only the one issued by the Harbormaster.

How to Sign up for the Marinas

1. Homeport facilities are available to all Town of Greenwich residents. Proof of residency is required.

Any two of the following is needed:

  • Driver’s license
  • Credit card bill
  • Utility bill
  • Cable TV bill
  • Lease

2. Visit the Boating Desk at the Department of Parks and Recreation at Town Hall:

  • Bring proof of residency (above) and an accurate description of your vessel; it is important that the overall length, including the outboard engine and pulpit be provided along with an accurate beam measurement at the time of your visit.
  • Bring a copy of your vessel registration (if required by the state).
  • We will put you on the appropriate waiting list based on your preferred marina and the size of your vessel.
  • When space becomes available, the Dockmaster will contact you.

Boating and Marina Fees
Click here for boating and marina fees

Our Grass Island Marina in Greenwich Harbor has tie-up space for visitors. There is no fee for the first 2 hours.  Fees apply after two hours or over night based upon vessel size. Call the boating office at Town Hall, (203) 618-7651 or the Grass Island Dockmaster at (203) 618-9695 for further information.

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Town Hall - 101 Field Point Road, Greenwich, CT 06830. Phone: (203) 622-7700. Copyright © , Town of Greenwich. All rights reserved.
Important Notice from the Town Of Greenwich
Water Faucet
The Town of Greenwich Board of Selectmen adopted new water restrictions that focus on restricting water use for outdoor irrigation and are in keeping with the Emergency Water Supply Order recently issued by the CT Department of Public Health. The new restrictions recognize that reservoir levels are improving but are still below average.