• Photo of Greater New York event space venue Atlantis Banquets and Events's Full Venue

Atlantis Banquets and Events


Atlantis Banquets & Events creates a magical atmosphere for any social event. As guests journey privately through the ruins of the Lost City of Atlantis, they’ll take in the captivating array of exhibits that make the Long Island Aquarium such a special place. Guests have the option of utilizing the Aquarium or the gorgeous Sea Star Ballroom which overlooks the serene Peconic River and Treasure Cove Resort Marina.

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.

Whatever the nature of your event, you’ll have the assurance of knowing that yours is the only function we’ll be holding at that time – and that our attentive staff will make sure your guests enjoy the experience of a lifetime.

Atlantis Banquets & Events can accommodate events of up to 650 people, making it an ideal choice for any social function, including:

• Weddings
• Bar/Bat Mitzvahs
• Proms
• Reunions
• Christenings
• Engagement Parties
• Holiday Parties
• Children’s Birthdays

For your convenience, room blocks are available at the adjacent waterfront Hyatt Place East End & Resort Marina, featuring 100 state-of-the-art suites, a 24-hour fitness center, indoor and outdoor swimming pools, complimentary Wi-Fi access and more. The WATERFRONT Suite is a luxurious option and includes all the aforementioned amenities plus a living room, dining room, kitchen and king-sized bedroom.

Map Atlantis Banquets and Events


431 East Main St.

Riverhead, NY 11901