Kagoshima City is justifiably proud and protective of the marine life thriving in the adjacent seas. In 1997, the city opened the Kagoshima Aquarium. Its seven floors feature a diversity of plants and 30,000 creatures. The best showcase at Io World Kagoshima Suizokukan is the Kuroshio Great Water Tank. Schools of fish swim within this 400,000 gallon exhibit along with a whale shark, the world’s largest fish. The aquarium also hosts three daily dolphin shows.