Osaka Aquarium, also known as Kaiyukan, is probably Japan's best aquarium. It introduces various forms of life inhabiting the Pacific Rim in a well organized and impressive way.

Marine life is displayed in 15 tanks, each representing a specific region of the Pacific Rim. The central tank, representing the Pacifc Ocean, is nine meters deep and home to a whale shark, the aquarium's main attraction.

Visitors start their tour of the aquarium on the 8th floor and slowly spiral down floor by floor around the central tank. Some of the tanks stretch over several floors, making it possible to observe the animals from different depths and perspectives.

Osaka Aquarium is located in the Tempozan Harbor Village of Osaka's Port area. The admission fee is a proud 2000 Yen per adult.

Subway Chuo Line, Osakako Station.