Social Events

You’ll select either the Sea Star Ballroom, overlooking Treasure Cove Resort Marina and the tranquil Peconic River or one of nine room choices within the Long Island Aquarium, to set the scene for your special event. Your guests will enjoy truly inspired cuisine, masterfully prepared by our classically trained chefs, using only the finest and freshest ingredients. You can choose from a variety of dining options, including a seated dinner reception, butler-passed hors d’oeuvres, cocktail party, or a buffet dinner.

Sweet 16, Bar & Bat Mitzvahs, Quinceañera

The Ultimate Coming of Age Party

Atlantis Banquets & Events creates a magical atmosphere for any social event and is the perfect backdrop for your child’s dreams and memories. Your child’s celebration is sure to be the party of the year as your guests dance the night away under the great white shark suspended from the ceiling, or in the Sea Star Ballroom with its stunning views of the Peconic River.

Read More

Celebrations & Events

Whether you’re looking for an intimate place for a quiet reception, a large hall for hundreds of well-wishers, or a unique setting surrounded by water, Atlantis Banquets & Events is the right choice.

Learn More

Proms & Senior Banquets

THE place to be for an out-of-the-ordinary prom - our waterfront venue will give you and your guests everything you need for a memorable night full of fun and excitement.

Learn More

Installation Dinner

When it comes to catering halls on Long Island, there are an endless amount of options, but the challenge is not only in finding a location, but also in choosing the one that best suits your event.

Learn More

Room Blocks

Room blocks are available for all your special events. Take the elevator home and enjoy our luxurious, waterfront accommodations at the Hyatt Place Long Island/East End adjacent to the Sea Star Ballroom, or modern, boutique suites at The Preston House & Hotel just across the street. Our Waterfront Suite is another lavish option overlooking the Treasure Cove Resort Marina.

Learn More