Noboribetsu Jigokudani got its name because it feels like being in hell.
A strong earthquake occurred near Mount Usu on the shore of Lake Toya. As a result, a volcanic eruption occurred, causing the ground to rise rapidly to form a high mountain.
Touyako is a freshwater lake in southwestern Hokkaido, Japan. It is a caldera lake. It is about 10 km in diameter, nearly circular, and covers an area of 70.72 square kilometers. It has a circumference of 50 km. The deepest point is 180.0 meters. The average water depth is 117.0 meters. The water storage capacity is 8.19 cubic kilometers. The lake surface is 84 meters above sea level. The northernmost limit of Japan's non-freezing lake