Long Island Aquarium and Exhibition Center (formerly Atlantis Marine World) is an aquarium which opened in 2000 on Long Island in Riverhead, New York, United States, becoming the first large-scale aquarium to open in New York State in more than 35 years. 

One of its biggest attractions is a 20,000-US-gallon (76,000 l) coral reef display tank, which is one of the largest all-living coral displays in the Western Hemisphere.


Construction on the Aquarium began in 1999, and it opened on June 15, 2000. The Town of Riverhead bought the land in 1995 with the hopes the Okeanos Foundation of Hampton Bays, New York would operate it as part of a rehabilitation project of the Peconic waterfront. However, Okeanos was unable to raise funds. Space has been given in the Aquarium to the Riverhead Foundation for Marine Research and Preservation.

The Aquarium's original cost of $15 million was provided by developers James J. Bissett and Joseph M. Petrocelli.[3] Bissett's family owns the Bissett Nursery in Holtsville, New York. Petrocelli's family owns Petrocelli Construction based in Ronkonkoma, New York, as well as Raphael Vineyard.

On July 1, 2011, it changed its name to Long Island Aquarium and Exhibition Center after undergoing a $24 million expansion including a brand-new Exhibition Center, a 28,000-square-foot (2,600 m2) Sea Star Grand Ballroom (which joined its successful catering component, Atlantis Banquets & Events), as well as construction of a 100-room waterfront Hyatt Place Hotel.[4] The Aquarium also owns and operates a 120-slip marina called Treasure Cove Resort Marina. The Aquarium was featured in the 5th season of The Apprentic


Indoor (Main Level)

  • Ray Bay
  • Gators
  • Archer Fish
  • Turtle Bay
  • Focus Tanks
  • Gulf Stream Riders
  • The Lagoon
  • Tidal Marsh
  • Shipwreck Touch Tank
  • Crab Villa
  • Clownfish & Anemone
  • Piranha
  • Shipwreck/Artificial Reef
  • Discus Fish
  • Local Rocky Shores
  • Lost City Of Atlantis Shark Exhibit
  • Eels
  • Amazon Rainforest
  • Coral Reef
  • Form & Function
  • Cuttlefish
  • Flounder Find
  • Puffer Fish
  • Electric Eel
  • Giant Pacific Octopus
  • Seahorses
  • Jellyfish


  • Megaldon Display
  • Schooling Fish
  • Poseidon's Treasure Room
  • Geoffroy's Marmosets


  • Seals
  • Penguin Pavilion
  • Carnivorous Plant Bog
  • Sea Lion Coliseum
  • Ancient Reptile Ruins
  • Koi Pond
  • Gator Invasion
  • Unearthing Atlantis
  • J&J Mining Co.
  • Snorkel Viewing Platform
  • Otter Falls
  • Japanese Snow Monkeys
  • Creatures of the Night
  • Atlantis Explorer Tour Boat
  • Critter Cove.
  • Barred Owl
  • Shark Reef Lagoon
  • Coati

Butterflies, Bugs & Birds

  • Butterflies
  • Birds
  • Bugs
  • Butterfly Lab

The Riverhead Foundation

  • Rescue Tank
  • Research Lab
  • Rehab Tanks

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