Atlantis Banquets & Events – A Waterfront Long Island Wedding Venue in Riverhead, NY

Situated along the Peconic River, Atlantis Banquets & Events is one of the most distinctive Long Island wedding venues, offering elegant waterfront ballrooms, outdoor ceremony spaces, and the added allure of the Long Island Aquarium. Couples can choose from a range of settings to create a wedding that’s classic, modern, or entirely unique.

Event Spaces

• Sea Star Ballroom – A newly decorated waterfront ballroom with floor-to-ceiling windows overlooking our Marina, oversized dance floor, a private terrace, and space for up to 440 guests.

• Coliseum Room at the Long Island Aquarium – Celebrate surrounded by coral reefs and tropical fish for a truly unforgettable aquarium wedding experience.

• The Riverside Pavilion – An open-air venue on the Peconic River, perfect for outdoor wedding ceremonies and cocktail hours.

All-Inclusive Wedding Packages

We offer a variety of All-Inclusive Wedding Packages designed to make planning effortless. Packages feature personalized event coordination, full-service catering, open bar, custom menus, wedding cake, and décor enhancements. Couples can also take advantage of preferred vendor partnerships for photography, entertainment, and florals.

For convenience, we have on-site hotels, the Hyatt Place Long Island/East End, The Preston House and Waterfront Suite. Also offering rehearsal dinners, welcome parties, and post-wedding brunch options, Atlantis Banquets & Events can provide for all your catering needs.

Services & Amenities

• Full-service event planning and day-of coordination

• In-house catering and bar service with customizable menus

• Valet parking

• On-site accommodations and first pick for guest room blocks at Hyatt Place

• Exclusive use of your selected event space

Why Couples Choose Atlantis Banquets & Events

• Multiple indoor and outdoor event spaces for ceremonies, receptions, and after-parties

• Exclusive use of your selected venue for privacy and personalized service

• Convenient Riverhead location, minutes from the LIE and at the gateway to the historic Wine Trail on the North Fork and famed Hamptons on the South Fork.

• Unique photo opportunities, from waterfront views, aquarium habitats, the butterfly garden, Penguins, Sea Lions and more!

Let’s Plan Your Event!

Discover why Atlantis Banquets & Events is one of the most versatile and memorable wedding venues on Long Island.