Where is Yonaguni Island?, Near Australia, South of mainland Japan, Near Hawaii, Who discovered the underwater rock formations?, Kihachiro Aratake, Masaaki Kimura, Robert Schoch, According to Masaaki Kimura, the formations are…, An ancient city, A coral reef, A shipwreck, How old does Masaaki think the city is?, More than 5,000 years old, 500 years old, 100 years old, What does Robert Schoch think caused the formations?, Volcanoes, Earthquakes, Sharks, What do both scientists agree about?, The formations are a city., The formations are natural., Yonaguni is an amazing place to visit..

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