Danger sign in front of volcanic field and steaming pond in Noboribetsu, Hell Valley, Hokkaido, Japan, Asia

Pathway through steaming Sulphur pits, Hell Valley, Shikotsu-Toya National Park, Noboribetsu, Hokkaido, Japan, Asia

Steaming volcano of Hell Valley, Noboribetsu, Hokkaido, Japan, Asia

Steaming turquoise blue volcanic pond of Hell Valley, Noboribetsu, Hokkaido, Japan, Asia

Steep walls, autumn gold and red trees with steam from a volcanic hot spring, Hell Valley, Noboribetsu, Hokkaido, Japan, Asia

Mount Hiyori rises above Oyunuma Lake in Hell Valley, Noboribetsu, Hokkaido, Japan, Asia

Close-up view of the Hell Valley volcano, Noboribetsu, Hokkaido, Japan, Asia

Pathway through steaming Sulphur pits, Hell Valley, Shikotsu-Toya National Park, Noboribetsu, Hokkaido, Japan, Asia

Hell Valley at Shikotsu-Toya National Park, Noboribetsu, Hokkaido, Japan, Asia

Volcanic field and steaming pond in Noboribetsu, Hell Valley, Hokkaido, Japan, Asia

View along the Hell Valley in autumn, Noboribetsu, Hokkaido, Japan, Asia