Seacoast Enterprises Associates operates four unique and beautifully maintained marinas on Three Mile Harbor. Seasonal and short term transient slips are available at each of our East Hampton marina facilities. Combined we offer over 280 in water slips and 20 dry rack spaces. Deep water Three Mile Harbor Transient Moorings are also available.

Our experienced staff, consisting of marine professionals is available 7 days a week (in season) to ensure personal attention to your Hamptons Boating Requirements. Please contact our reservations center today at 631-324-5666 to reserve your Hamptons Boat Slip today.

• Four Full Service Marinas
• Two Working Boat Yards
• 280 protected deep water boat slips
• Dry Rack Slips with scheduled launching
• 120 volt 30 amp and 120/240 Volt 50 Amp service
• Security cameras
• Secure upland storage available for boats, trailers, vehicles and RV’s
• Deck / Bar-B-Q area for families
• Easy access to summer events and activities
• Deep Water Transient Moorings
• Sport Fishing, Sailing, Wake Boarding and Water Skiing
• Best Hamptons Boat Slips
• Visit The Springs and the historic Villages of East Hampton and Amagansett