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About Us

Treasure Cove Resort Marina is a full-service, 120-slip marina, accommodating power boats up to 65-feet long, with seasonal and transient dockage. Our friendly and knowledgeable staff is available during the season from 8am – 5pm, Monday – Saturday and Sunday 8am – 4pm.  With two full-time mechanics on hand, you won’t worry about routine maintenance or substantial repairs, our team can handle any situation that may arise.

This resort destination features everything you desire in a vacation spot or for your home away from home. Electric hook-ups, pump out stations and laundry are just the basics with regards to member benefits. Our marina members receive complimentary membership at the Long Island Aquarium, named a Top Ten Aquarium for kids by Parents Magazine. Transient guests may purchase discounted tickets to the Aquarium for use during their stay. Both members and transients have access to the Fitness Center as well as the Indoor and Outdoor pools at the Hyatt Place Long Island/East End.

Looking for a bite to eat or a cocktail? Don’t miss the Seaside Grill featuring daily food and drink specials plus live music on Fridays, Saturdays and Sundays. Jerry & the Mermaid is also located on the premises and features favorite casual fare. For something more upscale, check out the Preston House & Hotel which boasts a menu inspired by New American cuisine with a focus on the use of fresh and local ingredients.

Treasure Cove Resort Marina, established in 1995, is located at 469 East Main Street in Riverhead NY on the Peconic River, the longest river on Long Island and part of the Central Pine Barrens Core Preservation Area. This slow-moving river is freshwater, becoming an estuary just east of our facility. The Peconic River is an outstanding habitat for a variety of wildlife. Many species of birds inhabit the wetlands bordering the river, including Canada goose, American black duck, mallard, wood duck, American wigeon, pied-billed grebe, green-winged teal, American bittern, mute swan, and great blue heron. Other species found in the area include white-tailed deer, mink, raccoon, woodcock, spotted turtle, stinkpot, and little brown bat.