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Three Mile Harbor Moorings

Dinghy Dock Available

$55-$100 Nightly or $330-$600 Weekly

Day Trip
Call Reservationist
2 Boat Yard Road
East Hampton, NY 11937
Check-in after 01:00 PM
Check-out before 11:00 AM
VHF 09
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Looking for Seasonal or Annual Dockage?

Are you looking to keep your boat at Three Mile Harbor Moorings as a seasonal or annual customer? Request it to be your home marina today!
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6 Reviews

by clcouture47 on Jul 10, 2020
A quick overnight stop. The moorings were excellent and appeared to be new and little used. We’ll be planning our next visit very soon.

by pamelalandon on Jun 15, 2020
We had a great relaxing time - what a beautiful spot. The only thing they could "fix" is the mooring numbers are too hard to see!
Marina Response:
Thanks for staying with us! Glad you enjoyed your stay at our moorings.

by 5oclock1 on Aug 21, 2019
Great facilities, great communication. Beautiful location. We’ll be back.

by robrav on Jul 14, 2019
Accommodating and responsive staff. Provided mooring assignment and instructions in advance. Will definitely book again soon!

by a19ats66 on Jul 02, 2019
Beautiful place to get away from it all

by qzds1p29m1zkjadmfyzb on Aug 12, 2018
Nice quiet harbor! We all enjoyed our selves rafting up to three boats

About Three Mile Harbor Moorings

Looking for a great deep water mooring field for your next tour or cruise? Look no further than the Three Mile Harbor Moorings from Seacoast Enterprises Associates (S.E.A).

We have 5 deep water transient moorings located in the center of beautiful Three Mile Harbor. With Deep water access from the Inlet at the North end of the harbor, down the entire length of the channel and into the mooring field, we can handle vessels up to 65 feet. A Dinghy or Tender is recommended to access our private dinghy dock at nearby Gardiners Marina. Bathroom facilities are available at Gardiners Marina and you can walk to the Three Mile Ship’s Store, a family run Deli and Restaurant. Please join us this season for a safe, fun stay on beautiful Three Mile Harbor. Amenities include:

  • Deepwater Transient Moorings
  • Private Dinghy Dock
  • Bathroom Facilities
  • Beautiful, Protected Mooring Field
  • Nearby Ships Store
  • Walk to Delicatessen and Restaurant

Booking Info

Three Mile Harbor Moorings via Harbor Marina receives transient boaters between the operating hours of 9:00am to 5:00pm, 7 days a week in season. Check in time is at 11:00am. Please use VHF Channel 9 to contact us during our regular operating hours when you arrive in the Three Mile Harbor Channel Entrance and we will offer you full service dockage and support, including any related marina services during our regular, scheduled hours of operation. Should you require a late check-in or departure, please contact us in advance so we can properly support your boating trip. We do not provide a launch service for our moorings at this time. Thank you and Happy Boating from the Three Mile Harbor Mooring Team.


  • Water


    • Medical Facilities w/in 5 Miles
    • Restrooms
    • Showers



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