The aquarium is a part of the Ocean Expo Commemorative National Government Park located in Motobu, Okinawa. The aquarium is made up of four-floors which hold attractions of deep sea creatures, sharks, coral, tropical fish and other fish tank decor. The aquarium is set on 19,000 m² of land, holds a total of 77 tanks with 10,000 m³ of water. Water for the saltwater exhibits is pumped into the aquarium from 350m offshore 24 hours a day.
The main tank called the ‘Kuroshio Sea’ holds 7,500-cubic meters (1,981,290 gallons) of water and features the world’s second largest acrylic glass panel, measuring 8.2 meters by 22.5 meters with a thickness of 60 centimeters. Whale sharks and manta rays are kept amongst many other fish species in the main tank.
On 16 June 2007 at 10:25 PM a manta ray was born at the aquarium after a gestation of 374 days.
The aquarium holds 80 species of coral and is one of very few that keep whale sharks in captivity, and is currently trying to breed them.