East Hampton Three Mile Harbor Marinas and Moorings

$4.50/ft off-peak; $6.50/ft peak

$60-$110 Nightly or $375-$680 Weekly

Day Trip
Not Offered
6 Boat Yard Rd
East Hampton, NY 11937
Check-in after 01:00 PM
Check-out before 11:00 AM

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35 Reviews

by Will L. - Verified user on Sep 23, 2023
Our stay was excellent. Halsey’s is a nice marina with neat, clean and well cared for amenities. Les Black was great and could not have been nicer and more accommodating. From his guidance in entering the marina and tying up to his vast local knowledge of East Hampton, Les was exceptional. Throughout our stay he was always checking in to see if we needed anything. Les is what makes Halsey’s a 5 star marina!

by Nelson G. - Verified user on Sep 12, 2023
Excellent Town Dock. There for 3 years

by Carrie W. - Verified user on Sep 03, 2023
We stayed at Halseys Marina in Three Mile Harbor. Planned to stay 1 night but seas dictated that we stay another, which the marina was able to accommodate. Dock Master, Les Black is now our "Gold standard" for dock masters moving forward. He contacted us via cell phone prior to our arrival to ensure that we would have no trouble finding this small but very quaint marina. Les asked us to text him or call when we were at certain points in our journey and gave very specific directions to the marina which were spot on. Les and a deck hand were on the dock waiting for us which was a reassuring and refreshing change from what we have often experienced. In addition, Les gave us the lay of the land and made recommendations for meals and entertainment. Halsey Marina had a lovely bath house with indoor and outdoor showers and a nice TV room AND laundry machines. The barbecue area was more than sufficient and lovely, under the trees overlooking the harbor and spectacular sunset. We were later contacted via text by Les asking if we needed anything or had any questions. We will mark this as one of our favorite spots and hope to go back. Kudos to the 3 Mile Harbors team and especially Les Black.

by Laura L. - Verified user on Aug 26, 2023
Les Black is an excellent dockmaster. Great directions on where to go to find Halsey's marina, lovely slip, beautiful marina with lovely sunset views. Great water pressure to wash the salt off the boat, excellent facilities with 3 large commercial washers and dryers. Les gave great recommendations for dinner and where to provision. Highly recommend!

by Bruce C. - Verified user on Aug 21, 2023
Hospitality in abundance! The best neighbors on our planet. The facilities are first class. Les Brown is the King of Welcome Back!

by Patrick L. - Verified user on Aug 05, 2023
Beautiful spot. Friendly staff

by john H. - Verified user on Aug 02, 2023
Outstanding Stay in East Hampton at Halseys Marina, Les and his team provide incredible service from start to finish. They recommended a few dinner spots and Bostwick's on the Harbor was what we chose. It is a great spot and great menu. We will be back to Halseys Marina soon! Annie and John H

by james h. - Verified user on Jul 23, 2023
We were in a critical situation as our anchor windlass would not work! Called directly and we were accomodatd immediately!!! Thank you! Thank you!

by Keith p. - Verified user on Jul 21, 2023
Folks that work at the marina are very friendly. Ships store is outstanding

by Peter G. - Verified user on Jul 14, 2023
Really friendly staff, great clubhouse, super clean

by Nikki R. - Verified user on Jul 07, 2023
Great accommodations and Les is the best. Helped us dock and helped us after hours when we pulled in. Very responsive. We will definitely be back!

by scott M. - Verified user on Jul 05, 2023
There are 4 marinas owned by a common group. The dockmaster at Halseys Marina, Les, was wonderful. Gave good instructions on how to enter marina and did an excellent job when we left the slip. The dockhands were always there to help or ask if you needed anything. I highly recommend this Marina and will definitely contact them next time I plan to go to Three Mile Harbor.

by Christopher R. - Verified user on Jul 04, 2023
Prettiest harbor… nicest people.

by Lou v. - Verified user on Jun 21, 2023
Friendly people. Great slip. Easy in-out. Thank you!

by Len W. - Verified user on Jun 17, 2023
Les Black is outstanding , would highly recommend

by Constantin C. - Verified user on Jun 05, 2023
Very nice harbor in excellent location with very good Harbourmaster Peter Daniels taking care about our Arrival. Top!
Marina Response:
We're delighted to hear that you enjoyed your stay with us in Three Mile Harbor! We hope to welcome you again in the future. Happy boating!

by Frank m. - Verified user on Sep 24, 2022
Could not do enough for us. Attentive to our needs. Made sure we were comfortable with our location because of an elderly dog who has trouble getting off of boat. Offered suggestions on where to eat or go. Had interesting bits of info on people and places. All of this describes a super nice and generous dock master, Les Black. East Hampton has a top notch person on their team at their marinas. We stayed at Gardiner's Marina but Les also suggested Halsey's for a visit next trip.

by Robert H. - Verified user on Sep 11, 2022
Our stay was wonderful the staff was great Less Black the Harbomaster was Incredibly helpful.

by Brian B. - Verified user on Sep 04, 2022
So nice people were very accommodating- great ship store def will come back

by Steve T. - Verified user on Aug 14, 2022
Our moorings reservation worked perfectly although we never discovered where the Marina was or took advantage of anything other than the mooring itself. Gorgeous harbor.

by Brett S. - Verified user on Jul 21, 2022
A lovely spot, we were stern out towards a beautiful harbor with quiet boat traffic and amazing wildlife. Les and crew were ever present, very pleasant, and always helpful. Well located near restaurants, an amazing deli, and a famous farmstand. We paddle boarded all the way to the far end of 3-mile harbor, great exercise and just beautiful. In all, a great place and stay.

by Robert L. - Verified user on Jul 11, 2022
These guys were awesome! All parts of the experience including checking with us to make sure we got back to CT safely. I highly recommend this group (4 marinas) Les (dockmaster) is great!

by Nicolette W. - Verified user on Jul 03, 2022
We were on a mooring ball. The marina is not too far away via dinghy. A very pleasant stay and their bathroom facilities were spotless!

by Juan M. - Verified user on Oct 03, 2021
The harbor master, Les, is wonderful! He goes way beyond what you would expect. We love Halseys Marina, but the main reason we come back is Les!

by Jeff D. - Verified user on Sep 09, 2021
Three mile harbor is a very nice place to spend a few days. There is a good anchorage there and we would have anchored but our windlass was out of order at the time. The mooring balls are SUPER expensive and we only got one because of our windlass situation.
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Dockwa Deals

20% off Dockage

Enjoy the start of summer in East Hampton! Come visit the beautiful Three Mile Harbor in the month of June for 20% OFF Transient Dockage and Moorings!

Expires: 06/30/24 11:59 PM EDT
Coupon Code (click to apply)

About East Hampton Three Mile Harbor Marinas and Moorings

Seacoast Enterprises Associates is a family business that owns and operates the only transient moorings and four marinas in Three Mile Harbor: Harbor Marina, Halsey’s Marina, Gardiner’s Marina, and Three Mile Harbor Marina. Each location provides a different set of amenities and experiences. All marina locations have trained staff on-hand ready to assist boaters, provide electric and water hookups, and free WiFi.

Harbor Marina is the first marina at the entrance of Three Mile Harbor. There is a restaurant on location, “Bostwick’s on the Harbor”, which provides a lovely sunset dining experience. Harbor Marina is a full service marina with floating docks, dry rack, and a fuel dock. There is a ship’s store on location that offers a wide variety of goods, from tackle and bait to gifts and ice cream.

Halsey’s Marina is located in the southern end of the harbor. The marina has fixed docks, a clubhouse with bathrooms, showers, and laundry, and a lawn with a grilling area. The quiet and private atmosphere of Halsey’s Marina resembles a yacht club setting.

Gardiner’s Marina is located in the southern end of the harbor. The marina basin is newly renovated as of 2024, creating a larger space for more comfortable maneuvering in and out of slips. Gardiner’s Marina has fixed docks with jet floats, a clubhouse with bathrooms, showers, and laundry, a lawn with a grilling area, and allows for parking behind your boat. The marina’s close proximity to preserved wetlands offers beautiful views of the local environment.

Three Mile Harbor Marina is a full service marina and boatyard located in the southern end of Three Mile Harbor. The marina has floating docks, a handicap-accessible clubhouse with bathrooms, showers, laundry, and grills. There is a ship’s store on location with an array of boating necessities from zincs to bilge cleaner. Three Mile Harbor Marina is the closest marina to the town of East Hampton, a short 10 minute drive away.

The transient moorings are 500lbs mushroom anchors located in the main deepwater mooring field of Three Mile Harbor. A stay on the transient moorings includes complimentary access to the dinghy dock and clubhouse at Three Mile Harbor Marina. The protected harbor provides placid waters, a dedicated watersports area, and lots of fellow boaters enjoying the Hamptons atmosphere. Please be aware that there is no launch service in Three Mile Harbor.

Transient boaters are received in season between the operating hours of 8:00 am and 4:00 pm, 7 days a week. Check-out time is 11:00 am, check-in time is 1:00 pm.

Booking Info

  • If you prefer a specific marina location, please let us know in the “Special Request” field and we will try our best to accommodate.
  • Check-out time is 11:00am, Check-in time is 1:00pm.
  • Hail the marina on VHF Channel 9 when entering Three Mile Harbor to allow staff to prepare for your arrival.
  • Holiday Weekends require a 2 night minimum stay (Memorial Day Weekend, Fourth of July Week(s), Three Mile Harbor Fireworks Weekend, Labor Day Weekend. Weekends include Friday, Saturday, and Sunday nights).
  • If you are traveling in a group, please confirm dates at least 30 days in advance or as soon as possible. We will try our best to accommodate based on availability.
  • Day Trips are not accepted.


  • Water Hookup
  • Electrical


  • Service & Maintenance
  • Ship Store
  • Dry Stack
  • Wireless Internet
  • Restrooms
  • Showers
  • Laundry
  • Ice
  • Security
  • Groceries
  • Bait & Tackle
  • Floating Docks
  • Oil Recycling
  • Land Storage
  • Travel Lift
  • Captains Lounge
  • Pet Friendly
  • Medical Facilities w/in 5 Miles



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