Natural phenomenon and it's wonderful to watch. It's free and there are people helping u to take pictures free... Worth a visit:)

Except for the sulphuric smell which gives me a headache and made me sick...

Fantastic view, good hiking/walking trails, natural foot springs

This is the second time I came to Hell's Valley, the previous visit being in spring. The heavy snow has made most of the attractions around the area impossible, i.e. Oyanuma and the forest trails and the natural foot bath. It was extremely perilous even to visit the geyser, because the heated stones melted some of the snow and portions... More

Exploring the nature and valley was good and it was a good walk around the valley. However, as we went in winter and the paths were all covered with snow, it tends to get quite slippery when walking.

This used to be a pretty impressive walk. But so many hotels have tapped into the hot springs that what used to be a roaring rocket powered volcanic vent now enits a few little wisp of sulfury steam.

Great walk, hardly any other tourist around on a winter's weekday

a good place to visit & hike while you are at Noboribetsu.. go early & take your time hiking along the trail, then have a relaxing evening at your onsen hotel.