This is a list of aquaria (public aquariums) in Japan. For zoos, see List of zoos in Japan. Also, For worlds, see List of aquaria. Aquariums are facilities where animals are confined within tanks and displayed to the public, and in which they may also be bred. Such facilities include public aquariums, oceanariums, marine mammal parks, and dolphinariums. Japan has the largest number of public aquariums per capita in the world.There are many small public aquariums in Japan and many are not on this list.