It is officially known as the 'Morinokuni Mizu-no-Kuni' aquarium, emphasizing its identity as a 'Land of Water'.
The aquarium holds a significant collection of species endemic to the Shimanto River, Japan's last pristine river.
It maintains a dedicated research and conservation exhibit for the Japanese Giant Salamander, a protected 'Special Natural Monument'.
The facility is integrated into a 'Roadside Station' (Michi-no-Eki) complex, a unique Japanese cultural phenomenon combining travel facilities with local attractions.
It functions as a gateway to the broader 'Nijino Mori' (Rainbow Forest) park complex which includes traditional crafts and outdoor activities.
Nijino Mori Park Aquarium is a specialized freshwater-focused facility located within the larger Nijino Mori Park in Matsuno, Ehime. The aquarium is nationally recognized for its focus on the Shimanto River ecosystem, housing over 120 species of freshwater fish. It is one of the few facilities in Japan to maintain a successful breeding and display program for the Japanese giant salamander. Visitors can observe penguins and Asian small-clawed otters in outdoor and semi-indoor habitats. The park serves as a hub for local environmental education and aquatic conservation efforts in the Kitauwa District. The architecture integrates with the surrounding natural greenery of the Matsuno region. Interactive tanks allow for close-up viewing of riverine species native to Shikoku.
The central observation window featuring the Japanese Giant Salamander tank.
Combine your visit with a trip to the nearby roadside station market to sample local agricultural products.
Check the daily feeding schedule upon arrival to catch the otter and penguin activity, as they are most active during these times.
Wear comfortable walking shoes to explore the surrounding park grounds after finishing the aquarium tour.
Do not treat the aquarium as a large-scale oceanarium; it is a small, specialized facility focused on river life.
Closed on Tuesdays, or the following day if Tuesday is a public holiday; also closes for year-end and new-year holidays.
Refrain from using flash photography near the animal enclosures to prevent startling the inhabitants.
