Okinawa prefecutre is the southern islands of Japan. It takes around two and half hours from Tokyo to Naha-city in Okinawa by airplane. The beautiful aqueriaum, Okinawa Churaumi Aquarium, is located at the north part of Okinawa. It takes two hours by car from Naha-city. Some bus compnaies opertate the service to the aquarium from Naha city. The admission fee is 850 Yen for a adult. Normally three hours are enough to see this place.