Okinawa Churaumi Aquarium has the world's largest tank viewing window (made of acrylic board, length 22.5M x height 8.2M x thickness 60CM), tank size (capacity 7500 cubic meters, tank width 35M, tank depth 27M, tank height 10M), through the huge tank to appreciate the most eye-catching focus of the scene is the whale shark, the ghost manta ray, about 70 species of 16,000 fish species on display, as if entering the underwater world, surrounded by the ocean. In addition to the huge Kuroshio Sea tank, the aquarium also has feeding shows, marine ecology explanations, marine viewing areas, coral sea, special fish species, biological display areas and other activities and display areas.