N 40∞ 55' 3.84'', W -72∞ 39' 15.42'' booked.net TIDES >
Treasure Cover Resort Marina

Ideally located on the picturesque, boat filled Peconic River, Treasure Cove Resort Marina is the perfect place to come play and stay

Treasure Cove Resort Marina is a 120-slip marina, accommodating power boats up to 65-feet long, with seasonal and transient dockage. The marina sits on the Peconic River, in Riverhead, New York, the gateway to Long Island’s famed East End. We’re conveniently located in the middle of the twin forks of Long Island, with other popular North and South Fork destinations a short ride away.

This resort destination features everything one would want in a vacation spot. With two restaurants on property, a bar with live music on Fridays, Saturdays and Sundays, indoor and outdoor swimming pools, a fitness center and many more amenities, a marina membership will give you that holiday feeling all summer long.

Located adjacent to the Long Island Aquarium and directly behind the Hyatt Place Long Island/East End hotel, Treasure Cove Resort Marina, has a wide array of member perks sure to please all members of your family! With conveniences such as electrical hook ups and high-speed internet access, you’ll feel right at home as you enjoy your summer stays.

Our location on the picturesque Peconic River in Riverhead, NY is perfect for families and individuals alike. With the Long Island Aquarium right next door, Long Island Canoe Kayak Rentals within the marina, Tanger Outlets and Splish Splash nearby, there’s plenty of activities to keep everyone happy.  Guests can also enjoy quick trips up the North Fork for Long Island’s Wine Country or the South Fork for Long Island’s famed Hamptons sites and beaches.

With all we have to offer, become a Treasure Cove Resort Marina member or transient visitor this summer!

In Season (Memorial Day – Labor Day)
Daily 8am – 4pm

Winter Hours
Monday – Friday 8am – 4pm
Saturday – Sunday – Closed

Average Distances by Boat:
20 minutes to the Shinnecock Locks
20 minutes to Robins Island
45 minutes to Shelter Island
1 hour to Greenport or Sag Harbor
2 hours to Montauk
3 hours to Block Island

Daily Fuel Prices



Your Resort Destination Awaits...


Members will enjoy a safe and private marina managed by our crew with more than 20 years of experience. In addition to traditional amenities, such as a gas dock, showers and laundry,



With so many attractions and special events in Riverhead, a Transient trip is the best way to stay in town! Visit for the day for just $1 per foot,



All seasonal dockage members receive traditional benefits, like electric and water hook up, and specialty perks you won’t find at any other marina!


Area Attractions

Located between the two forks of Long Island, there’s so much to see and do in the area.


Our Family of Properties