The Osaka Aquarium Kaiyukan is an aquarium located in the ward of Minato in Osaka, Japan, near Osaka Bay. When it first opened, it was the largest public aquariums in the world, and is a member of the Japanese Association of Zoos and Aquariums
The aquarium is about a five-minute walk from Osakako Station on the Osaka Municipal Subway Chūō Line, and is next to the Tempozan Ferris Wheel. (Wikipedia)