Aso Onsen resort
Aso is located almost in the center of Kyushu and possesses the world’s largest Caldera with
18km west-east and 24km north-south, created by 4 periods of explosive volcanic activity in
the ancient times.
The many Onsen resorts were created due to volcanic activity during ancient times,
such as Southern part of Aso, Northern part of Aso, Uchinomaki, Kurokawa, Kikuchi.
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Aso
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