The Salmon Hometown Chitose Aquarium has one of the largest freshwater tanks in Japan. In the aquarium, you can observe various freshwater creatures from all over the world, mainly salmon and freshwater fish from Hokkaido. At Japan's first underwater observation zone, where you can directly see the Chitose River underwater, you can closely observe the activities of the creatures of the Chitose River throughout the four seasons. Make sure to come and enjoy your time!