The Okinawa Churaumi Aquarium (沖縄美ら海水族館, Okinawa Churaumi Suizokukan^?), located within the Ocean Expo Commemorative National Government Park in Okinawa, Japan. It welcomed its 20 millionth visitor on 30 March 2010 and is a member of the Japanese Association of Zoos and Aquariums (JAZA).