Third time to Japan

Returning to Japan for the second time

Mount Aso (阿蘇山, Asosan) is an active volcano in the center of Kyushu. Its ancient caldera ranks among the world’s largest, with a diameter of up to 25 kilometers and a circumference of over 100 kilometers. In the center of the caldera stand the mountain’s active volcanic peaks, including Mount Nakadake, whose…