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e16
    

from Hanaokayama ( a small mountain ) you can enjoy a nice view of the city of Kumamoto

40 km away from Kumamoto you can visit the largest volcano in Japan - Mt. ASO
its crater " Nakadake " belches up smoke continuously

concrete-shelters are supposed to protect visitors against sudden eruptions

from time to time a very pungent smell wells up from the green crater-lake

it is possible to walk around the crater´s rim along 4 km of well maintained footpaths ...