Visit Osaka Aquarium Kaiyukan, one of the largest aquarium in the world. Bring yourself closer to the underwater world and marvel its amazing display of aquatic species from waters of Japan, the Pacific Ocean and more! Explore 27 different tanks (The biggest one is 9 meters deep). Not only fish, manta rays, and whale sharks will you be discovering, you will also witness amphibians, reptiles, birds and mammals. At this park, a true diversity of stunning species living in the natural environments of the Pacific.