Noboribetsu Hell Valley
Noboribetsu Hell Valley (Jigokudani) is the exploded crater of about 450m which is located in the northern-east of Noboribetsu in Hokkaido. It is also the origin of the Noboribetsu onsen. From the observation deck, you can see how the hot water and volcanic gas spout & smell of sulfur around the hell valley. Entrance fees to the valley is free.