6 Boat Yard Rd
East Hampton, NY 11937
Dock
Offered
Mooring
Offered
Day Trip
Not Offered
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101 Reviews
by Eduardo R. - Verified user on Oct 29, 2026
Expensive not very helpful to customers.
by Corbin/ Terry K. on Oct 07, 2026
One of the best arrivals and stays we’ve ever experienced.
The marina and setting is beautiful, protected and close to perfect. Les, who managed our arrival and tie-up, could not have been any more helpful with directions and docking.
The power was clean and we only needed one fender, which made things easy.
The only downside is that it’s remote and unless you have a car, you’re not going anywhere once you arrive.
Definitively a 5-star, will return experienced.
by Stephanie S. - Verified user on Oct 07, 2026
The stay was fantastic! The area is beautiful and I feel that the value is well worth the price. Les and his team helped us tie up and gave us excellent local knowledge on tides for managing the fixed pier as well as how to enjoy the area. We left early but they would have also helped us leave the doc facilities. Beautiful facilities. A 10/10 experience!
Marina Response:
Hi Stephanie, we're so happy to hear that you enjoyed your stay at Halsey's Marina! Our off-season pricing offers great value for transient boaters traveling in the spring and fall. We are proud to have Les as a part of our team, and we're glad to hear the team assisted you well. We hope to welcome you back to Three Mile Harbor in the future!by thomas m. - Verified user on Sep 20, 2026
Great facility and very friendly staff. Dinner at Bostwick’s was excellent!
by William R. - Verified user on Sep 20, 2026
Great staff and facilities!
by Peter W. - Verified user on Sep 06, 2026
Great stay at Halsey’s Marina!
We had a fantastic time at Halsey’s Marina in East Hampton. Dockmaster Les made the the whole experience easy,friendly, helpful, and clearly on top of everything expecially for a new boater. The marina is clean, well-run, and close to town, making it a perfect home base for our trip. Highly recommend, and be sure to say hi to Les. On our re-visit list for sure.
by Michael S. - Verified user on Aug 31, 2026
Very well maintained and quiet place to spend some time. People are friendly and the Dock-master Les makes the entire experience one to remember. And when Les says the sun will come out, you can count on it. Would definitely stay there again.
Marina Response:
Thank you for your review, Michael! We passed your kind words along to Les, and he is very appreciative. We are proud to have him as part of our crew. We hope to welcome you back to Three Mile Harbor soon.by Carrie W. - Verified user on Aug 31, 2026
We stayed at Halseys Marina in Three Mile Harbor fore 2 nights. 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 James M. - Verified user on Aug 31, 2026
We greatly enjoyed our stay. 3 Mike Harbor is a real gem as is the staff at the marina. There is plenty of dinghy space and the clubhouse and shower and rest room facilities were neat and clean. Super nice!!!!
Marina Response:
Hi James, thank you very much for your review! We really appreciate your kind words. We're happy to hear that you enjoyed your stay, and were pleased with the facilities. We look forward to welcoming you back next time.by jeffrey D. - Verified user on Aug 30, 2026
Great spot great staff! Will be back
by Scott M. - Verified user on Aug 27, 2026
Beautiful Harbor, wonderful dinner at the marina, fantastic sunset! Couldn't be better
Marina Response:
Hi Scott, thank you very much for your kind review. Bostwick's on the Harbor not only has the best food, but also the best sunset views! We're glad you enjoyed your experience, and we hope to welcome you back again soon.by Jeff B. - Verified user on Aug 22, 2026
Nice location. Challenging docks and tie up.
by Tamara W. - Verified user on Aug 22, 2026
We were on a strong mooring in an unexpected storm on the Sound. Had to find refuge. Truly grateful!
by Kevin C. - Verified user on Aug 22, 2026
The marina location is the farthest from the Mohring field, so be sure to bring your own dinghy.
The staff was not helpful. I had to press her to find a location where I could simply drop off luggage. The best spot to drop off luggage is a public dock on the left fork as you approach this marina. The public dock is actually passed the marina slips.
by Steve H. - Verified user on Aug 21, 2026
Only disappointment was there brochure said they had floating docks. We were on a fixed dock
Marina Response:
Hi Steve, thank you very much for your 5-star review! We apologize for the miscommunication regarding the dock types. We take reservations for all four of our marinas in Three Mile Harbor through this one Dockwa page. While three of our locations offer floating docks, we assigned you to Halsey's Marina, which only provides fixed-pier docks. Next time you come to stay with us, please let us know if you have any preferences or requests in the "Special Request" field when making your reservation. We will also make an internal note to ensure you are on a floating dock for future reservations. We hope to accommodate you on one of our floating docks sometime soon!by Phil T. on Aug 19, 2026
Peter and staff are the best. Blew an idler pully they located part nearby i picked it up tech stayed late on a Friday. Got me back in the game in no time. Thanks again hmguys for a great stay.
Marina Response:
Hi Phil, thank you very much for your review! We're glad we were able to assist you with the repairs. The Harbor Marina crew is very appreciative of your kind words. We hope to welcome you back to Three Mile Harbor soon!by Richard M. - Verified user on Aug 16, 2026
Pick up stick was easy to grab. Mooring was easy to find and lines in great shape.
by Richard V. - Verified user on Aug 09, 2026
Helpful in tie up. Idyllic locale
by Lois S. - Verified user on Aug 06, 2026
Our stay was excellent. Everyone was friendly and helpful. Restroom etc were very clean and seemed new.
Marina Response:
Hi Lois, we're glad to hear that you enjoyed your stay! We take pride in providing clean, well-maintained facilities for all of our boaters. We hope to welcome you back to Three Mile Harbor again in the future. Happy boating!by Maria R. - Verified user on Jul 26, 2026
It was a beautiful stay and so much to do if you choose to ..
by Robert F. - Verified user on Jul 21, 2026
Expensive for what you got.nice area though
by Peter G. - Verified user on Jul 19, 2026
Really friendly staff, great clubhouse and bathrooms, super clean
by Glenn S. - Verified user on Jul 13, 2026
As always - great time at 3 Mile! Always a great place to relax and enjoy the beautiful bay!
by Malina P. - Verified user on Jul 13, 2026
Beautiful spot, well placed and maintained mooring balls, spotless marina facilities.
by Angela R. - Verified user on Jul 12, 2026
Very nice weekend! The marina is very informative and the mooring is nicely maintained and spaced out.
About East Hampton Three Mile Harbor Marinas and Moorings
-- New LOWER Rates for Transient Dockage 2026! --
Seacoast Enterprises Associates is a family business that owns and operates four marinas and the only 7 transient moorings in Long Island's East Hampton Three Mile Harbor. Of the four marinas: Harbor Marina, Halsey’s Marina, Gardiner’s Marina, and Three Mile Harbor Marina, each location provides a different set of amenities and experiences. The East Hampton and Amagansett villages are a short car ride away, home to renowned beaches and restaurants. All marina locations have trained staff on-hand ready to assist boaters, provide access to electric and water hookups, and free WiFi.
Harbor Marina is the first marina at the entrance of Three Mile Harbor. The marina’s waterside restaurant "Bostwick's On The Harbor" provides a lovely sunset dining experience. Harbor Marina is a full service marina with floating docks, dry rack, and a fuel dock that sells ValvTect branded gasoline and diesel. 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 half of the harbor. The marina has fixed docks, a quaint clubhouse with bathrooms, showers, and laundry, and a picnic area with grills. The basin is surrounded by nature preserves on three sides and affords peaceful natural views. The quiet and private atmosphere of Halsey’s Marina resembles a picturesque yacht club setting.
Gardiner’s Marina is located in the southern half of the harbor. The marina basin is newly-renovated, creating a larger space for more comfortable maneuvering into and out of slips. Gardiner’s Marina has bulkhead slips with floating finger piers, a modest clubhouse with bathrooms, showers, and laundry, a picnic area with grills, and allows for parking behind your boat. The marina’s close proximity on the west side to preserved wetlands offers uniquely 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. Three Mile Harbor Marina provides slips in season, and year-round vessel storage and certified service for Mercury, Volvo Penta, Yamaha, and more. 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 including ice, snacks, bait, engine parts, and more.
The 7 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 calm 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 and it is a no-discharge zone.
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 Weekend, Three Mile Harbor Fireworks Weekend, and Labor Day Weekend. Weekends include Thursday, 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.
Services
Amenities
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