Introduction to Okinawa Churaumi Aquarium: Located on the Motobu Peninsula, it is said to be the world's largest, largest water tonnage, largest fish species, thickest water tank, largest shark species, and largest in the world. This is the first time that natural corals are artificially raised in an aquarium. There are a total of 650 species of fish essences and 75,000 various exotic fish. The world's largest fish tank, known as the world's largest plexiglass wall recognized by Guinness, houses a variety of fish including a 7-meter-long whale shark and a giant ghost manta ray. The ecological tour part allows tourists to directly touch the beautiful and cute little creatures in the sea (starfish, sea cucumbers, sea snakes, sea urchins, crabs, etc.).