Asia Osaka Aquarium Kaiyukan February 10, 2019 Paul Saulnier Leave a comment While in Osaka, I visited the Osaka Aquarium KAIYUKAN which is one of the largest’s aquariums in the world. The aquarium’s very large tanks are able to accommodate large species of fish, like this whale shark. A spider crab lurks in the shadows. The aquarium had an exhibit showing different types of jellyfish. Tiny jellyfish. Bigger jellyfish. This seal seems to have a bit of a smirk, and perhaps enjoys the attention. A beautiful sunset outside the aquarium.