



Threemile Harbor
Threemile Harbor is a well-protected anchorage tucked into the southern end of Gardiners Bay, about three miles from the village of East Hampton — that's actually how it got its name, not from any measurement of the harbor itself. You'll find calm, sheltered water here with a genuinely quiet, local feel that sets it apart from the busier Hamptons scene nearby. The Springs area surrounding the harbor has a long history as an artists' community, and East Hampton's shops, restaurants, and galleries are just a short trip away.
Based on AIS data
quiet → busy
Marinas and anchorages near Threemile Harbor · times are dock to dock
Popular Times
How full it gets, by local hour — tallest when the most boats are here.
- Busiest on Saturdays and Sundays
- Fullest around 20:00, emptiest around 11:00
- Half the boats arrive by 14:00
- 75% of visits are overnight
- Typical day stop: ~3h · max recorded 28 boats
Plan a Passage
Popular
22 legs boats have actually been recorded sailing.















