Osaka Aquarium Kaiyukan, also known as the Osaka Oceanarium, is one of the largest aquariums in the world. Located in Osaka, Japan’s Tempozan Harbor Village complex, it opened its doors to visitors in 1990 and has since become a popular attraction for locals and tourists alike.

The main feature of the aquarium is a massive tank that holds over 5,400 tons of water and features several different marine habitats found throughout the Pacific Rim. Visitors can walk through an acrylic tunnel that runs along the bottom of this tank, allowing them to get up close with sharks, manta rays, sea turtles, and other large fish swimming above them.

In addition to this main exhibit area called “Pacific Ocean”, there are additional exhibits featuring Antarctic penguins at “Antarctica”; seals from Sea Forest; dolphins & jellyfishes from Echizen coast at “Japan forest”; giant spider crabs at “Aleutian Islands”.

Visitors can explore these exhibits on multiple floors that wind around spiraling ramps designed to simulate descending into deeper parts of oceanic areas or coral reefs inhabited by various types of tropical fishes such as hundreds of species of colorful fishes like clownfish (called Nemo), angelfish on Coral Reef Gallery,”Flooded Forest” which showcases piranha’s school wandering among mangrove trees’ roots while you enjoy walking across rope bridge-like passageways.

Overall The Osaka Aquarium Kaiyukan provides an immersive experience showcasing some amazing aquatic creatures where people come out having learned many facts about sea animals they might not have known before visiting here!