Zigoku Valley is a trace of explosion crater in the city of Tobetsu, Hokkaido.
The valley was created by explosion of Mount Kasha in 10,000 years ago. The water which flow into the valley is heated to about 70 degrees by the heat from fumaroles. Therefore hot spring zone develop around the valley. Japanese hot springs have various a affect which help your health and get rid of your routine stress.
How about going to a hot spring to relax.
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