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Noboribetsu is famous for its rich geothermal resources, and the Noboribetsu volcano is a well-known local landscape. About 10,000 years ago, after the volcanic eruption, the lava cooled and solidified, forming this strange valley. The gray and brown rock layers, plus a lot of geothermal heat erupting from the ground, formed a special volcanic terrain. There are frequent geothermal activities here, and a lot of geothermal heat erupts from the ground, forming a strange sight shrouded in billowing white smoke. Representative viewing spots include the Noboribetsu Hell Valley, which is a crater relic that is still spewing white smoke, with a valley eroded by lava, springs emitting white gas, and flowing springs. In addition, there is the nearby Hiyoriyama Observatory, which is also a good choice for viewing the remains of volcanic activity.