This is a rare freshwater aquarium in Japan that has a collection of freshwater fish. The highlight is the sight of schools of the huchen, the largest freshwater fish in Japan, swimming around, which is said to be a mythical fish.

The world's first "Four Seasons Aquarium" freezes over in winter and recreates a natural river in Hokkaido, while the museum's world-class innovative exhibition methods, such as Japan's first "Waterfall Basin Aquarium" where you can look up at a waterfall basin from below, are its selling points. Please come and experience them for yourself.

There are also aquariums displaying tropical freshwater fish from around the world, including the Amazon and Asia, as well as a touch corner.