"Noboribetsu Onsen & Jigokudani (Hell Valley) Part of Shikotsu-Toya National Park, Noboribetsu Onsen is a resort town with baths fed by around 3,000 liters (793 gallons) of water from the hot spring known as Jigokudani, or Hell Valley. It earns its nickname from the impressive plumes of sulfur-scented gas that escape from the area's volcanic rocks. A popular tourist attraction, the spring's therapeutic waters contain a range ofminerals—not only sulfur but also various salts andiron."
11 Must-Visit Onsen in Japan
