Atlantis Banquets & Events / Long Island Aquarium

We can accommodate weddings for groups ranging from 20 to 650 guests in any of our nine unique venues, including the modern and beautiful Sea Star Ballroom, which boasts sweeping views of the Treasure Cove Resort Marina and the Peconic River. Located within the Long Island Aquarium, which houses our most captivating and colorful aquatic habitats, the Coliseum Room is yet another ideal venue for your next event. It is possible to have your ceremony outside, in the Riverside Pavilion, which is located right on the banks of the river, or inside the Sea Star Ballroom, which has beautiful marble features and a stunning Chihuly inspired glass chandelier. One-of-a-kind event, only Atlantis Banquets & Events can incorporate the element of nature into your wedding with photo sessions featuring our penguin and sea lion exhibits, shark exhibit, or within our indoor and always tropical Butterfly Garden. It's important to have an unforgettable setting for your once-in-a-lifetime celebration. In addition to our waterfront location on the Peconic River and our spectacular aquatic displays, Atlantis Banquets & Events offers wedding packages that are tailored to fit your style, vision, and financial constraints. We recognize how important your wedding day is, and we will go above and beyond to make your experience one that will be remembered forever. As a result, we limit ourselves to one wedding at a given time. Nothing less than the best for you and your guests. Our knowledgeable staff will assist you in planning the perfect wedding, and we will provide you with innovative suggestions for hosting a reception that is truly unique and memorable!