The Osaka Aquarium is located at the edge of Osaka’s Harbor. The exhibit content of the aquarium presents the vast Pacific using the powerful organizing metaphor of the Ring of Fire — a linear zone of volcanic and tectonic activity outlining the Pacific Basin, corresponding to rich habitats and communities of animals. As visitors descend through the 286,000 sf, 2.9 million gallon aquarium, they view each exhibit from levels above the water’s surface and below.