East Hampton Three Mile Harbor Marinas

Welcome to East Hampton Three Mile Harbor Marinas!

This marina will start accepting reservation requests for the 2024 season after 4/15/2024

Includes open transient space at Halsey’s Marina, Gardiner’s Marina, Three Mile Harbor Marina, and Harbor Marina of East Hampton.

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.